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GEOFFREY IBBOTT

TitleProfessor
InstitutionMD Anderson
DepartmentRadiation Physics
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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    1. Mickevicius NJ, Chen X, Boyd Z, Lee HJ, Ibbott GS, Paulson ES. Simultaneous motion monitoring and truth-in-delivery analysis imaging framework for MR-guided radiotherapy. Phys Med Biol. 2018 11 26; 63(23):235014. PMID: 30474614.
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    2. Mohamed ASR, Bahig H, Aristophanous M, Blanchard P, Kamal M, Ding Y, Cardenas CE, Brock KK, Lai SY, Hutcheson KA, Phan J, Wang J, Ibbott G, Gabr RE, Narayana PA, Garden AS, Rosenthal DI, Gunn GB, Fuller CD. Prospective in silico study of the feasibility and dosimetric advantages of MRI-guided dose adaptation for human papillomavirus positive oropharyngeal cancer patients compared with standard IMRT. Clin Transl Radiat Oncol. 2018 Jun; 11:11-18. PMID: 30014042.
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    3. Yan Y, Yang J, Beddar S, Ibbott G, Wen Z, Court LE, Hwang KP, Kadbi M, Krishnan S, Fuller CD, Frank SJ, Yang J, Balter P, Kudchadker RJ, Wang J. A methodology to investigate the impact of image distortions on the radiation dose when using magnetic resonance images for planning. Phys Med Biol. 2018 04 05; 63(8):085005. PMID: 29528037.
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    4. Rehman JU, Isa M, Ahmad N, Nasar G, Asghar HMNUHK, Gilani ZA, Chow JCL, Afzal M, Ibbott GS. Dosimetric, Radiobiological and Secondary Cancer Risk Evaluation in Head-and-Neck Three-dimensional Conformal Radiation Therapy, Intensity-Modulated Radiation Therapy, and Volumetric Modulated Arc Therapy: A Phantom Study. J Med Phys. 2018 Apr-Jun; 43(2):129-135. PMID: 29962691.
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    5. Lee HJ, Kadbi M, Bosco G, Ibbott GS. Real-time volumetric relative dosimetry for magnetic resonance-image-guided radiation therapy (MR-IGRT). Phys Med Biol. 2018 02 20; 63(4):045021. PMID: 29384731.
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    6. Wang J, Yung J, Kadbi M, Hwang K, Ding Y, Ibbott GS. Assessment of image quality and scatter and leakage radiation of an integrated MR-LINAC system. Med Phys. 2018 Mar; 45(3):1204-1209. PMID: 29363770.
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    7. Lee HJ, Alqathami M, Blencowe A, Ibbott G. Iron-based radiochromic systems for UV dosimetry applications. Phys Med Biol. 2018 01 09; 63(2):025010. PMID: 29134951.
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    8. Rivard MJ, Ballester F, Butler WM, DeWerd LA, Ibbott GS, Meigooni AS, Melhus CS, Mitch MG, Nath R, Papagiannis P. Erratum: "Supplement 2 for the 2004 update of the AAPM Task Group No. 43 Report: Joint recommendations by the AAPM and GEC-ESTRO" [Med. Phys. Vol 44 (9), e297-e338 (2017)]. Med Phys. 2018 Feb; 45(2):971-974. PMID: 29424443.
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    9. Tsapaki V, Ibbott G, Krisanachinda A, Ng KH, Suh TS, Tabakov S, Damilakis J. 22nd International Conference on Medical Physics 2016, Bangkok, Thailand; Medical physics propelling global health. Phys Med. 2017 Dec; 44:196-198. PMID: 29221890.
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    10. Loughery B, Starkschall G, Hendrickson K, Prisciandaro J, Clark B, Fullerton G, Ibbott G, Jackson E, Burmeister J. Navigating the medical physics education and training landscape. J Appl Clin Med Phys. 2017 Nov; 18(6):275-287. PMID: 29125231.
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    11. Lee HJ, Roed Y, Venkataraman S, Carroll M, Ibbott GS. Investigation of magnetic field effects on the dose-response of 3D dosimeters for magnetic resonance - image guided radiation therapy applications. Radiother Oncol. 2017 12; 125(3):426-432. PMID: 28964533.
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    12. Rivard MJ, Ballester F, Butler WM, DeWerd LA, Ibbott GS, Meigooni AS, Melhus CS, Mitch MG, Nath R, Papagiannis P. Supplement 2 for the 2004 update of the AAPM Task Group No. 43 Report: Joint recommendations by the AAPM and GEC-ESTRO. Med Phys. 2017 Sep; 44(9):e297-e338. PMID: 28644913.
      View in: PubMed
    13. Faught AM, Davidson SE, Fontenot J, Kry SF, Etzel C, Ibbott GS, Followill DS. Development of a Monte Carlo multiple source model for inclusion in a dose calculation auditing tool. Med Phys. 2017 Sep; 44(9):4943-4951. PMID: 28640950.
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    14. Faught AM, Davidson SE, Popple R, Kry SF, Etzel C, Ibbott GS, Followill DS. Development of a flattening filter free multiple source model for use as an independent, Monte Carlo, dose calculation, quality assurance tool for clinical trials. Med Phys. 2017 Sep; 44(9):4952-4960. PMID: 28657114.
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    15. Pollard JM, Wen Z, Sadagopan R, Wang J, Ibbott GS. The future of image-guided radiotherapy will be MR guided. Br J Radiol. 2017 May; 90(1073):20160667. PMID: 28256898.
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    16. McCarroll R, Youssef B, Beadle B, Bojador M, Cardan R, Famiglietti R, Followill D, Ibbott G, Jhingran A, Trauernicht C, Balter P, Court L. Model for Estimating Power and Downtime Effects on Teletherapy Units in Low-Resource Settings. J Glob Oncol. 2017 Oct; 3(5):563-571. PMID: 29094096.
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    17. Viswanathan AN, Erickson BA, Ibbott GS, Small W, Eifel PJ. The American College of Radiology and the American Brachytherapy Society practice parameter for the performance of low-dose-rate brachytherapy. Brachytherapy. 2017 Jan - Feb; 16(1):68-74. PMID: 28109633.
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    18. McEwen M, DeWerd L, Ibbott G, Followill D, Rogers DWO, Seltzer S, Seuntjens J, Kawachi T, Katayose T, Kodama T, Miyasaka R. Addendum to the AAPM's TG-51 Protocol for Clinical Reference Dosimetry of High-Energy Photon Beams. Igaku Butsuri. 2017; 37(1):2-24. PMID: 28924094.
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    19. Davidson SE, Cui J, Kry S, Deasy JO, Ibbott GS, Vicic M, White RA, Followill DS. Modification and validation of an analytical source model for external beam radiotherapy Monte Carlo dose calculations. Med Phys. 2016 Aug; 43(8):4842. PMID: 27487902.
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    20. Lim TY, Kudchadker RJ, Wang J, Stafford RJ, MacLellan C, Rao A, Ibbott GS, Frank SJ. Effect of pulse sequence parameter selection on signal strength in positive-contrast MRI markers for MRI-based prostate postimplant assessment. Med Phys. 2016 Jul; 43(7):4312. PMID: 27370146.
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    21. Huq MS, Fraass BA, Dunscombe PB, Gibbons JP, Ibbott GS, Mundt AJ, Mutic S, Palta JR, Rath F, Thomadsen BR, Williamson JF, Yorke ED. The report of Task Group 100 of the AAPM: Application of risk analysis methods to radiation therapy quality management. Med Phys. 2016 Jul; 43(7):4209. PMID: 27370140.
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    22. Followill D, Ibbott G, Hanson W, Purdy JA, Stovall M, Almond P. Robert J. Shalek, Ph.D., J.D. Med Phys. 2016 Jul; 43(7):4396. PMID: 27370154.
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    23. Lim TY, Kudchadker RJ, Wang J, Bathala T, Szklaruk J, Pugh TJ, Mahmood U, Ibbott GS, Frank SJ. Development of a magnetic resonance imaging protocol to visualize encapsulated contrast agent markers in prostate brachytherapy recipients: initial patient experience. J Contemp Brachytherapy. 2016 Jun; 8(3):235-42. PMID: 27504133.
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    24. Nath R, Rivard MJ, DeWerd LA, Dezarn WA, Thompson Heaton H, Ibbott GS, Meigooni AS, Ouhib Z, Rusch TW, Siebert FA, Venselaar JLM. Guidelines by the AAPM and GEC-ESTRO on the use of innovative brachytherapy devices and applications: Report of Task Group 167. Med Phys. 2016 Jun; 43(6):3178-3205. PMID: 27277063.
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    25. Cho J, Ibbott GS, Kerr MD, Amos RA, Stingo FC, Marom EM, Truong MT, Palacio DM, Betancourt SL, Erasmus JJ, DeGroot PM, Carter BW, Gladish GW, Sabloff BS, Benveniste MF, Godoy MC, Patil S, Sorensen J, Mawlawi OR. Characterizing proton-activated materials to develop PET-mediated proton range verification markers. Phys Med Biol. 2016 06 07; 61(11):N291-310. PMID: 27203621.
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    26. Weygand J, Fuller CD, Ibbott GS, Mohamed AS, Ding Y, Yang J, Hwang KP, Wang J. Spatial Precision in Magnetic Resonance Imaging-Guided Radiation Therapy: The Role of Geometric Distortion. Int J Radiat Oncol Biol Phys. 2016 07 15; 95(4):1304-16. PMID: 27354136.
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    27. Alqathami M, Blencowe A, Geso M, Ibbott G. Quantitative 3D Determination of Radiosensitization by Bismuth-Based Nanoparticles. J Biomed Nanotechnol. 2016 Mar; 12(3):464-71. PMID: 27280244.
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    28. Alqathami M, Blencowe A, Ibbott G. Experimental determination of the influence of oxygen on the PRESAGE® dosimeter. Phys Med Biol. 2016 Jan 21; 61(2):813-24. PMID: 26732988.
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    29. Fried DV, Mawlawi O, Zhang L, Fave X, Zhou S, Ibbott G, Liao Z, Court LE. Potential Use of (18)F-fluorodeoxyglucose Positron Emission Tomography-Based Quantitative Imaging Features for Guiding Dose Escalation in Stage III Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys. 2016 Feb 01; 94(2):368-76. PMID: 26853345.
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    30. Fried DV, Mawlawi O, Zhang L, Fave X, Zhou S, Ibbott G, Liao Z, Court LE. Stage III Non-Small Cell Lung Cancer: Prognostic Value of FDG PET Quantitative Imaging Features Combined with Clinical Prognostic Factors. Radiology. 2016 Jan; 278(1):214-22. PMID: 26176655.
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    31. Bishop AJ, Gupta S, Cunningham MG, Tao R, Berner PA, Korpela SG, Ibbott GS, Lawyer AA, Crane CH. Interstitial Brachytherapy for the Treatment of Locally Recurrent Anorectal Cancer. Ann Surg Oncol. 2015 Dec; 22 Suppl 3:S596-602. PMID: 25905584.
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    32. Castillo SJ, Castillo R, Castillo E, Pan T, Ibbott G, Balter P, Hobbs B, Guerrero T. Evaluation of 4D CT acquisition methods designed to reduce artifacts. J Appl Clin Med Phys. 2015 Mar 08; 16(2):4949. PMID: 26103169.
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    33. Xue J, LaCouture T, Grimm J, Goldman HW, Ibbott GS, Yorke E, Kubicek GJ. Overview of dosimetric and biological perspectives on radiosurgery of multiple brain metastases in comparison with whole brain radiotherapy. J Radiosurg SBRT. 2015; 3(4):271-279. PMID: 29296410.
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    34. Rehman Ju, Tailor RC, Isa M, Afzal M, Chow J, Ibbott GS. Evaluations of secondary cancer risk in spine radiotherapy using 3DCRT, IMRT, and VMAT: A phantom study. Med Dosim. 2015; 40(1):70-5. PMID: 25434808.
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    35. Klawikowski SJ, Yang JN, Adamovics J, Ibbott GS. PRESAGE 3D dosimetry accurately measures Gamma Knife output factors. Phys Med Biol. 2014 Dec 07; 59(23):N211-20. PMID: 25368961.
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    36. Fried DV, Tucker SL, Zhou S, Liao Z, Mawlawi O, Ibbott G, Court LE. Prognostic value and reproducibility of pretreatment CT texture features in stage III non-small cell lung cancer. Int J Radiat Oncol Biol Phys. 2014 Nov 15; 90(4):834-42. PMID: 25220716.
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    37. Juang T, Grant R, Adamovics J, Ibbott G, Oldham M. On the feasibility of comprehensive high-resolution 3D remote dosimetry. Med Phys. 2014 Jul; 41(7):071706. PMID: 24989375.
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    38. Cho J, Summers PA, Ibbott GS. An anthropomorphic spine phantom for proton beam approval in NCI-funded trials. J Appl Clin Med Phys. 2014 May 08; 15(3):4742. PMID: 24892351.
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    39. Castillo SJ, Castillo R, Balter P, Pan T, Ibbott G, Hobbs B, Yuan Y, Guerrero T. Assessment of a quantitative metric for 4D CT artifact evaluation by observer consensus. J Appl Clin Med Phys. 2014 May 08; 15(3):4718. PMID: 24892346.
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    40. Prisciandaro JI, Willis CE, Burmeister JW, Clarke GD, Das RK, Esthappan J, Gerbi BJ, Harkness BA, Patton JA, Peck DJ, Pizzutiello RJ, Sandison GA, White SL, Wichman BD, Ibbott GS, Both S. Essentials and guidelines for clinical medical physics residency training programs: executive summary of AAPM Report Number 249. J Appl Clin Med Phys. 2014 May 08; 15(3):4763. PMID: 24892354.
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    41. Lim TY, Stafford RJ, Kudchadker RJ, Sankaranarayanapillai M, Ibbott G, Rao A, Martirosyan KS, Frank SJ. MRI characterization of cobalt dichloride-N-acetyl cysteine (C4) contrast agent marker for prostate brachytherapy. Phys Med Biol. 2014 May 21; 59(10):2505-16. PMID: 24778352.
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    42. Walker GV, Johnson J, Edwards T, Gatilao RA, Hayden SE, Riley BA, Sittig DF, Gillin M, Ibbott G, Buchholz TA, Das P. Factors associated with radiation therapy incidents in a large academic institution. Pract Radiat Oncol. 2015 Jan-Feb; 5(1):21-7. PMID: 25413430.
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    43. Klawikowski SJ, Zeringue C, Wootton LS, Ibbott GS, Beddar S. Preliminary evaluation of the dosimetric accuracy of the in vivo plastic scintillation detector OARtrac system for prostate cancer treatments. Phys Med Biol. 2014 May 07; 59(9):N27-36. PMID: 24732073.
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    44. McEwen M, DeWerd L, Ibbott G, Followill D, Rogers DW, Seltzer S, Seuntjens J. Addendum to the AAPM's TG-51 protocol for clinical reference dosimetry of high-energy photon beams. Med Phys. 2014 Apr; 41(4):041501. PMID: 24694120.
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    45. Grant RL, Summers PA, Neihart JL, Blatnica AP, Sahoo N, Gillin MT, Followill DS, Ibbott GS. Relative stopping power measurements to aid in the design of anthropomorphic phantoms for proton radiotherapy. J Appl Clin Med Phys. 2014 Mar 06; 15(2):4523. PMID: 24710437.
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    46. Iqbal K, Gifford KA, Ibbott G, Grant RL, Buzdar S. Comparison of an anthropomorphic PRESAGE® dosimeter and radiochromic film with a commercial radiation treatment planning system for breast IMRT: a feasibility study. J Appl Clin Med Phys. 2014 Jan 06; 15(1):4531. PMID: 24423854.
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    47. Moyers MF, Ibbott GS, Grant RL, Summers PA, Followill DS. Independent dose per monitor unit review of eight U.S.A. proton treatment facilities. Med Phys. 2014 Jan; 41(1):012103. PMID: 24387521.
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    48. Ibbott GS, Haworth A, Followill DS. Quality assurance for clinical trials. Front Oncol. 2013 Dec 19; 3:311. PMID: 24392352.
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    49. Cho J, Ibbott G, Gillin M, Gonzalez-Lepera C, Titt U, Paganetti H, Kerr M, Mawlawi O. Feasibility of proton-activated implantable markers for proton range verification using PET. Phys Med Biol. 2013 Nov 07; 58(21):7497-512. PMID: 24099853.
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    50. Faught AM, Kry SF, Luo D, Molineu A, Bellezza D, Gerber RL, Davidson SE, Bosch W, Drzymala RE, Galvin J, Timmerman R, Sheehan J, Gillin MT, Ibbott GS, Followill DS. Development of a modified head and neck quality assurance phantom for use in stereotactic radiosurgery trials. J Appl Clin Med Phys. 2013 Jul 08; 14(4):4313. PMID: 23835394.
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    51. Das P, Johnson J, Hayden SE, Riley BA, Harrelson S, Gillin M, Ibbott G, Buchholz TA. Rate of radiation therapy events in a large academic institution. J Am Coll Radiol. 2013 Jun; 10(6):452-5. PMID: 23735271.
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    52. Cho J, Ibbott G, Gillin M, Gonzalez-Lepera C, Min CH, Zhu X, El Fakhri G, Paganetti H, Mawlawi O. Determination of elemental tissue composition following proton treatment using positron emission tomography. Phys Med Biol. 2013 Jun 07; 58(11):3815-35. PMID: 23681070.
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    53. Molineu A, Hernandez N, Nguyen T, Ibbott G, Followill D. Credentialing results from IMRT irradiations of an anthropomorphic head and neck phantom. Med Phys. 2013 Feb; 40(2):022101. PMID: 23387762.
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    54. Hartford AC, Galvin JM, Beyer DC, Eichler TJ, Ibbott GS, Kavanagh B, Schultz CJ, Rosenthal SA. American College of Radiology (ACR) and American Society for Radiation Oncology (ASTRO) Practice Guideline for Intensity-modulated Radiation Therapy (IMRT). Am J Clin Oncol. 2012 Dec; 35(6):612-7. PMID: 23165357.
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    55. Kavanagh BD, Ibbott GS, Orton CG. Point/counterpoint: physicists who are responsible for high-tech radiotherapy procedures should have to be specially credentialed. Med Phys. 2012 Dec; 39(12):7181-4. PMID: 23231268.
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    56. Followill DS, Kry SF, Qin L, Lowenstein J, Molineu A, Alvarez P, Aguirre JF, Ibbott GS. The Radiological Physics Center's standard dataset for small field size output factors. J Appl Clin Med Phys. 2012 08 08; 13(5):3962. PMID: 22955664.
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    57. Wallner PE, Ang KK, Zietman AL, Harris JR, Ibbott GS, Mahoney MC, Mezwa DG, Wilson LD, Becker GJ. The American Board of Radiology Holman Research Pathway: 10-year retrospective review of the program and participant performance. Int J Radiat Oncol Biol Phys. 2013 Jan 01; 85(1):29-34. PMID: 22682811.
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    58. Perez-Calatayud J, Ballester F, Das RK, Dewerd LA, Ibbott GS, Meigooni AS, Ouhib Z, Rivard MJ, Sloboda RS, Williamson JF. Dose calculation for photon-emitting brachytherapy sources with average energy higher than 50?keV: report of the AAPM and ESTRO. Med Phys. 2012 May; 39(5):2904-29. PMID: 22559663.
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    59. Bekelman JE, Deye JA, Vikram B, Bentzen SM, Bruner D, Curran WJ, Dignam J, Efstathiou JA, FitzGerald TJ, Hurkmans C, Ibbott GS, Lee JJ, Merchant TE, Michalski J, Palta JR, Simon R, Ten Haken RK, Timmerman R, Tunis S, Coleman CN, Purdy J. Redesigning radiotherapy quality assurance: opportunities to develop an efficient, evidence-based system to support clinical trials--report of the National Cancer Institute Work Group on Radiotherapy Quality Assurance. Int J Radiat Oncol Biol Phys. 2012 Jul 01; 83(3):782-90. PMID: 22425219.
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    60. Ibbott GS. US contributions to international standards for medical electrical equipment. J Am Coll Radiol. 2012 Mar; 9(3):218-20. PMID: 22386172.
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    61. Oldham M, Thomas A, O'Daniel J, Juang T, Ibbott G, Adamovics J, Kirkpatrick JP. A quality assurance method that utilizes 3D dosimetry and facilitates clinical interpretation. Int J Radiat Oncol Biol Phys. 2012 Oct 01; 84(2):540-6. PMID: 22361085.
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    62. Zietman A, Ibbott G. A clinical approach to technology assessment: how do we and how should we choose the right treatment? Semin Radiat Oncol. 2012 Jan; 22(1):11-7. PMID: 22177874.
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    63. Moran JM, Dempsey M, Eisbruch A, Fraass BA, Galvin JM, Ibbott GS, Marks LB. Safety considerations for IMRT: executive summary. Med Phys. 2011 Sep; 38(9):5067-72. PMID: 21978051.
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    64. Mourtada F, Mikell J, Ibbott G. Monte Carlo calculations of AAPM Task Group Report No. 43 dosimetry parameters for the (125)I I-Seed AgX100 source model. Brachytherapy. 2012 May-Jun; 11(3):237-44. PMID: 21816684.
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    65. Moran JM, Dempsey M, Eisbruch A, Fraass BA, Galvin JM, Ibbott GS, Marks LB. Safety considerations for IMRT: Executive summary. Pract Radiat Oncol. 2011 Jul-Sep; 1(3):190-5. PMID: 25740119.
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    66. Kerns JR, Kry SF, Sahoo N, Followill DS, Ibbott GS. Angular dependence of the nanoDot OSL dosimeter. Med Phys. 2011 Jul; 38(7):3955-62. PMID: 21858992.
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    67. Salminen EK, Kiel K, Ibbott GS, Joiner MC, Rosenblatt E, Zubizarreta E, Wondergem J, Meghzifene A. International Conference on Advances in Radiation Oncology (ICARO): outcomes of an IAEA meeting. Radiat Oncol. 2011 Feb 04; 6:11. PMID: 21294881.
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    68. DeWerd LA, Ibbott GS, Meigooni AS, Mitch MG, Rivard MJ, Stump KE, Thomadsen BR, Venselaar JL. A dosimetric uncertainty analysis for photon-emitting brachytherapy sources: report of AAPM Task Group No. 138 and GEC-ESTRO. Med Phys. 2011 Feb; 38(2):782-801. PMID: 21452716.
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    69. Rosenthal SA, Bittner NH, Beyer DC, Demanes DJ, Goldsmith BJ, Horwitz EM, Ibbott GS, Lee WR, Nag S, Suh WW, Potters L. American Society for Radiation Oncology (ASTRO) and American College of Radiology (ACR) practice guideline for the transperineal permanent brachytherapy of prostate cancer. Int J Radiat Oncol Biol Phys. 2011 Feb 01; 79(2):335-41. PMID: 21106306.
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    70. Erickson BA, Demanes DJ, Ibbott GS, Hayes JK, Hsu IC, Morris DE, Rabinovitch RA, Tward JD, Rosenthal SA. American Society for Radiation Oncology (ASTRO) and American College of Radiology (ACR) practice guideline for the performance of high-dose-rate brachytherapy. Int J Radiat Oncol Biol Phys. 2011 Mar 01; 79(3):641-9. PMID: 21106308.
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    71. Smith BD, Bentzen SM, Correa CR, Hahn CA, Hardenbergh PH, Ibbott GS, McCormick B, McQueen JR, Pierce LJ, Powell SN, Recht A, Taghian AG, Vicini FA, White JR, Haffty BG. Fractionation for whole breast irradiation: an American Society for Radiation Oncology (ASTRO) evidence-based guideline. Int J Radiat Oncol Biol Phys. 2011 Sep 01; 81(1):59-68. PMID: 20638191.
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    72. Frank SJ, Tailor RC, Kudchadker RJ, Martirosyan KS, Stafford RJ, Elliott AM, Swanson DA, Sing D, Choi J, Mourtada F, Ibbott GS. Anisotropy characterization of I-125 seed with attached encapsulated cobalt chloride complex contrast agent markers for MRI-based prostate brachytherapy. Med Dosim. 2011; 36(2):200-5. PMID: 20537886.
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    73. Hsu IC, Bae K, Shinohara K, Pouliot J, Purdy J, Ibbott G, Speight J, Vigneault E, Ivker R, Sandler H. Phase II trial of combined high-dose-rate brachytherapy and external beam radiotherapy for adenocarcinoma of the prostate: preliminary results of RTOG 0321. Int J Radiat Oncol Biol Phys. 2010 Nov 01; 78(3):751-8. PMID: 20207506.
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    74. Baldock C, De Deene Y, Doran S, Ibbott G, Jirasek A, Lepage M, McAuley KB, Oldham M, Schreiner LJ. Polymer gel dosimetry. Phys Med Biol. 2010 Mar 07; 55(5):R1-63. PMID: 20150687.
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    75. Ibbott GS, Molineu A, Followill DS. In regards to Dr. Eisbruch A et al. (Int J Radiat Oncol Biol Phys 2009. Electronic publication, June 17, 2009.). Int J Radiat Oncol Biol Phys. 2010 Feb 01; 76(2):639; author reply 639. PMID: 20117298.
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    76. Sherry C, Bowkley C, Ibbott G, Kaye AD, Short B. In through the out door: AMCLC 2009 council perceptions of self-referral. J Am Coll Radiol. 2009 Dec; 6(12):832-6. PMID: 19945037.
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    77. Mettler FA, Bhargavan M, Faulkner K, Gilley DB, Gray JE, Ibbott GS, Lipoti JA, Mahesh M, McCrohan JL, Stabin MG, Thomadsen BR, Yoshizumi TT. Radiologic and nuclear medicine studies in the United States and worldwide: frequency, radiation dose, and comparison with other radiation sources--1950-2007. Radiology. 2009 Nov; 253(2):520-31. PMID: 19789227.
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    78. Sakhalkar H, Sterling D, Adamovics J, Ibbott G, Oldham M. Investigation of the feasibility of relative 3D dosimetry in the Radiologic Physics Center Head and Neck IMRT phantom using presage/optical-CT. Med Phys. 2009 Jul; 36(7):3371-7. PMID: 19673232.
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    79. Hartford AC, Palisca MG, Eichler TJ, Beyer DC, Devineni VR, Ibbott GS, Kavanagh B, Kent JS, Rosenthal SA, Schultz CJ, Tripuraneni P, Gaspar LE. American Society for Therapeutic Radiology and Oncology (ASTRO) and American College of Radiology (ACR) Practice Guidelines for Intensity-Modulated Radiation Therapy (IMRT). Int J Radiat Oncol Biol Phys. 2009 Jan 01; 73(1):9-14. PMID: 19100920.
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    80. Sakhalkar HS, Adamovics J, Ibbott G, Oldham M. A comprehensive evaluation of the PRESAGE/optical-CT 3D dosimetry system. Med Phys. 2009 Jan; 36(1):71-82. PMID: 19235375.
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    81. Davidson SE, Popple RA, Ibbott GS, Followill DS. Technical note: Heterogeneity dose calculation accuracy in IMRT: study of five commercial treatment planning systems using an anthropomorphic thorax phantom. Med Phys. 2008 Dec; 35(12):5434-9. PMID: 19175103.
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    82. Tailor R, Ibbott G, Lampe S, Warren WB, Tolani N. Dosimetric characterization of a 131Cs brachytherapy source by thermoluminescence dosimetry in liquid water. Med Phys. 2008 Dec; 35(12):5861-8. PMID: 19175142.
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    83. Pourfallah TA, Allahverdi M, Alam NR, Ay MR, Zahmatkesh MH, Ibbott GS. Performance evaluation of MRI-based PAGAT polymer gel dosimeter in an inhomogeneous phantom using EGSnrc code on a Co-60 machine. Appl Radiat Isot. 2009 Jan; 67(1):186-91. PMID: 18951810.
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    84. Tailor R, Tolani N, Ibbott GS. Thermoluminescence dosimetry measurements of brachytherapy sources in liquid water. Med Phys. 2008 Sep; 35(9):4063-9. PMID: 18841858.
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    85. Butler WM, Bice WS, DeWerd LA, Hevezi JM, Huq MS, Ibbott GS, Palta JR, Rivard MJ, Seuntjens JP, Thomadsen BR. Third-party brachytherapy source calibrations and physicist responsibilities: report of the AAPM Low Energy Brachytherapy Source Calibration Working Group. Med Phys. 2008 Sep; 35(9):3860-5. PMID: 18841836.
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    86. Han Y, Shin EH, Lim C, Kang SK, Park SH, Lah JE, Suh TS, Yoon M, Lee SB, Cho SH, Ibbott GS, Ju SG, Ahn YC. Dosimetry in an IMRT phantom designed for a remote monitoring program. Med Phys. 2008 Jun; 35(6):2519-27. PMID: 18649485.
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    87. Ibbott G, Ma CM, Rogers DW, Seltzer SM, Williamson JF. Anniversary paper: fifty years of AAPM involvement in radiation dosimetry. Med Phys. 2008 Apr; 35(4):1418-27. PMID: 18491537.
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    88. Huq MS, Fraass BA, Dunscombe PB, Gibbons JP, Ibbott GS, Medin PM, Mundt A, Mutic S, Palta JR, Thomadsen BR, Williamson JF, Yorke ED. A method for evaluating quality assurance needs in radiation therapy. Int J Radiat Oncol Biol Phys. 2008; 71(1 Suppl):S170-3. PMID: 18406920.
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    89. Ibbott GS, Followill DS, Molineu HA, Lowenstein JR, Alvarez PE, Roll JE. Challenges in credentialing institutions and participants in advanced technology multi-institutional clinical trials. Int J Radiat Oncol Biol Phys. 2008; 71(1 Suppl):S71-5. PMID: 18406942.
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    90. Ibbott GS, Hanson WF, O'Meara E, Kuske RR, Arthur D, Rabinovitch R, White J, Wilenzick RM, Harris I, Tailor RC. Dose specification and quality assurance of radiation therapy oncology group protocol 95-17; a cooperative group study of iridium-192 breast implants as sole therapy. Int J Radiat Oncol Biol Phys. 2007 Dec 01; 69(5):1572-8. PMID: 18035213.
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    91. Frey GD, Ibbott GS, Morin RL, Paliwal BR, Thomas SR, Bosma J. The American Board of Radiology Perspective on Maintenance of Certification: Part IV: Practice quality improvement in radiologic physics. Med Phys. 2007 Nov; 34(11):4158-63. PMID: 18072479.
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    92. Followill DS, Evans DR, Cherry C, Molineu A, Fisher G, Hanson WF, Ibbott GS. Design, development, and implementation of the radiological physics center's pelvis and thorax anthropomorphic quality assurance phantoms. Med Phys. 2007 Jun; 34(6):2070-6. PMID: 17654910.
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    93. Rivard MJ, Butler WM, DeWerd LA, Huq MS, Ibbott GS, Meigooni AS, Melhus CS, Mitch MG, Nath R, Williamson JF. Supplement to the 2004 update of the AAPM Task Group No. 43 Report. Med Phys. 2007 Jun; 34(6):2187-205. PMID: 17654921.
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    94. Davidson SE, Ibbott GS, Prado KL, Dong L, Liao Z, Followill DS. Accuracy of two heterogeneity dose calculation algorithms for IMRT in treatment plans designed using an anthropomorphic thorax phantom. Med Phys. 2007 May; 34(5):1850-7. PMID: 17555266.
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    95. Li Z, Das RK, DeWerd LA, Ibbott GS, Meigooni AS, Pérez-Calatayud J, Rivard MJ, Sloboda RS, Williamson JF. Dosimetric prerequisites for routine clinical use of photon emitting brachytherapy sources with average energy higher than 50 kev. Med Phys. 2007 Jan; 34(1):37-40. PMID: 17278487.
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    96. Ibbott GS, Molineu A, Followill DS. Independent evaluations of IMRT through the use of an anthropomorphic phantom. Technol Cancer Res Treat. 2006 Oct; 5(5):481-7. PMID: 16981790.
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    97. Randall ME, Ibbott GS. Intensity-modulated radiation therapy for gynecologic cancers: pitfalls, hazards, and cautions to be considered. Semin Radiat Oncol. 2006 Jul; 16(3):138-43. PMID: 16814153.
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    98. Gillin MT, Dunning BF, Lawton CA, Foley WD, Byhardt RW, Morton G, Baikadi M, Pisansky TT, Michalski JM, Ibbott G, Lopez F. Quality assurance methods for the first Radiation Therapy Oncology Group permanent prostate implant protocol. Brachytherapy. 2006 Jul-Sep; 5(3):152-6. PMID: 16864066.
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    99. Tailor RC, Hanson WF, Wells N, Ibbott GS. Consistency of absorbed dose to water measurements using 21 ion-chamber models following the AAPM TG51 and TG21 calibration protocols. Med Phys. 2006 Jun; 33(6):1818-28. PMID: 16872089.
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    100. Minniti R, Chen-Mayer H, Seltzer SM, Huq MS, Bryson L, Slowey T, Micka JA, DeWerd LA, Wells N, Hanson WF, Ibbott GS. The US radiation dosimetry standards for 60Co therapy level beams, and the transfer to the AAPM accredited dosimetry calibration laboratories. Med Phys. 2006 Apr; 33(4):1074-7. PMID: 16696484.
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    101. Morin RL, Ibbott GS. Gel dosimetry. J Am Coll Radiol. 2006 Feb; 3(2):144-6. PMID: 17412026.
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    102. Timmerman R, Galvin J, Michalski J, Straube W, Ibbott G, Martin E, Abdulrahman R, Swann S, Fowler J, Choy H. Accreditation and quality assurance for Radiation Therapy Oncology Group: Multicenter clinical trials using Stereotactic Body Radiation Therapy in lung cancer. Acta Oncol. 2006; 45(7):779-86. PMID: 16982540.
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    103. Butler WM, Huq MS, Li Z, Thomadsen BR, DeWerd LA, Ibbott GS, Mitch MG, Nath R, Rivard MJ, Williamson JF, Yue NJ, Zaider M. Third party brachytherapy seed calibrations and physicist responsibilities. Med Phys. 2006 Jan; 33(1):247-8. PMID: 16485431.
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    104. Chaney E, Ibbott G. Methods for image segmentation should be standardized and calibrated. For the proposition. Med Phys. 2005 Dec; 32(12):3507-8. PMID: 16475748.
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    105. Ibbott G. Methods for image segmentation should be standardized and calibrated. Against the proposition. Med Phys. 2005 Dec; 32(12):3508-10. PMID: 16475749.
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    106. Halvorsen PH, Das IJ, Fraser M, Freedman DJ, Rice RE, Ibbott GS, Parsai EI, Robin TT, Thomadsen BR. AAPM Task Group 103 report on peer review in clinical radiation oncology physics. J Appl Clin Med Phys. 2005; 6(4):50-64. PMID: 16421500.
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    107. Molineu A, Followill DS, Balter PA, Hanson WF, Gillin MT, Huq MS, Eisbruch A, Ibbott GS. Design and implementation of an anthropomorphic quality assurance phantom for intensity-modulated radiation therapy for the Radiation Therapy Oncology Group. Int J Radiat Oncol Biol Phys. 2005 Oct 01; 63(2):577-83. PMID: 16168849.
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    108. Narayan K, vanDyk S, Bernshaw DL. In regard to correspondence between Pötter et al. and Nag et al. (Int J Radiat Oncol Biol Phys 2005;62:293-295). Int J Radiat Oncol Biol Phys. 2005 Oct 01; 63(2):644-5; author reply 645-7. PMID: 16168857.
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    109. Gifford KA, Horton JL, Jackson EF, Steger TR, Heard MP, Mourtada F, Lawyer AA, Ibbott GS. Comparison of Monte Carlo calculations around a Fletcher Suit Delclos ovoid with radiochromic film and normoxic polymer gel dosimetry. Med Phys. 2005 Jul; 32(7):2288-94. PMID: 16121584.
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    110. Gifford KA, Horton JL, Jackson EF, Steger TR, Heard MP, Mourtada F, Lawyer AA, Ibbott GS. Comparison of Monte Carlo calculations around a Fletcher Suit Delclos ovoid with radiochromic film and normoxic polymer gel dosimetry. Med Phys. 2005 Jul; 32(7Part1):2288-2294. PMID: 28493569.
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    111. Rivard MJ, Butler WM, DeWerd LA, Huq MS, Ibbott GS, Melhus CS, Mitch MG, Nath R, Williamson JJ. Response to "Comment on 'Update of AAPM Task Group No. 43 Report: A revised AAPM protocol for brachytherapy dose calculations'?" [Med. Phys. 31, 633-674 (2004)]. Med Phys. 2005 Jun; 32(6Part1):1822-1824. PMID: 28513947.
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    112. Meigooni AS, Rachabatthula V, Awan SB, Koona RA. Comment on "Update of AAPM Task Group no. 43 report: A revised AAPM protocol for brachytherapy dose calculations" [Med. Phys. 31, 633-674 (2004)]. Med Phys. 2005 Jun; 32(6):1820-1; author reply 1822-4. PMID: 16013739.
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    113. Pötter R, Dimopoulos J, Kirisits C, Lang S, Haie-Meder C, Briot E, Dumas I, Van Limbergen E, De Brabandere M, Nulens A, Erickson B, Rownd J, Petrow P. Recommendations for image-based intracavitary brachytherapy of cervix cancer: the GYN GEC ESTRO Working Group point of view: in regard to Nag et al. (Int J Radiat Oncol Biol Phys 2004;60:1160-1172). Int J Radiat Oncol Biol Phys. 2005 May 01; 62(1):293-5; author reply 295-6. PMID: 15850940.
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    114. Williamson JF, Butler W, Dewerd LA, Huq MS, Ibbott GS, Mitch MG, Nath R, Rivard MJ, Todor D. Recommendations of the American Association of Physicists in Medicine regarding the impact of implementing the 2004 task group 43 report on dose specification for 103Pd and 125I interstitial brachytherapy. Med Phys. 2005 May; 32(5):1424-39. PMID: 15984693.
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    115. Cho SH, Vassiliev ON, Lee S, Liu HH, Ibbott GS, Mohan R. Reference photon dosimetry data and reference phase space data for the 6 MV photon beam from varian clinac 2100 series linear accelerators. Med Phys. 2005 Jan; 32(1):137-48. PMID: 15719964.
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    116. Guerrero T, Zhang G, Segars W, Huang TC, Bilton S, Ibbott G, Dong L, Forster K, Lin KP. Elastic image mapping for 4-D dose estimation in thoracic radiotherapy. Radiat Prot Dosimetry. 2005; 115(1-4):497-502. PMID: 16381774.
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    117. Nag S, Cardenes H, Chang S, Das IJ, Erickson B, Ibbott GS, Lowenstein J, Roll J, Thomadsen B, Varia M. Proposed guidelines for image-based intracavitary brachytherapy for cervical carcinoma: report from Image-Guided Brachytherapy Working Group. Int J Radiat Oncol Biol Phys. 2004 Nov 15; 60(4):1160-72. PMID: 15519788.
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    118. Palta JR, Deye JA, Ibbott GS, Purdy JA, Urie MM. Credentialing of institutions for IMRT in clinical trials. Int J Radiat Oncol Biol Phys. 2004 Jul 15; 59(4):1257-9; author reply 1259-61. PMID: 15234063.
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    119. Followill DS, Davis DS, Ibbott GS. Comparison of electron beam characteristics from multiple accelerators. Int J Radiat Oncol Biol Phys. 2004 Jul 01; 59(3):905-10. PMID: 15183494.
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    120. Rivard MJ, Coursey BM, DeWerd LA, Hanson WF, Huq MS, Ibbott GS, Mitch MG, Nath R, Williamson JF. Update of AAPM Task Group No. 43 Report: A revised AAPM protocol for brachytherapy dose calculations. Med Phys. 2004 Mar; 31(3):633-74. PMID: 15070264.
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    121. DeWerd LA, Huq MS, Das IJ, Ibbott GS, Hanson WF, Slowey TW, Williamson JF, Coursey BM. Procedures for establishing and maintaining consistent air-kerma strength standards for low-energy, photon-emitting brachytherapy sources: recommendations of the Calibration Laboratory Accreditation Subcommittee of the American Association of Physicists in Medicine. Med Phys. 2004 Mar; 31(3):675-81. PMID: 15070265.
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    122. Bencomo JA, Chu C, Tello VM, Cho SH, Ibbott GS. Anthropomorphic breast phantoms for quality assurance and dose verification. J Appl Clin Med Phys. 2004; 5(1):36-49. PMID: 15753932.
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    123. Krintz AL, Hanson WF, Ibbott GS, Followill DS. A reanalysis of the Collaborative Ocular Melanoma Study Medium Tumor Trial eye plaque dosimetry. Int J Radiat Oncol Biol Phys. 2003 Jul 01; 56(3):889-98. PMID: 12788199.
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    124. Huq MS. Comment on "Calculated absorbed-dose ratios, TG51/TG21, for most widely used cylindrical and parallel-plate ion chambers over a range of photon and electron energies". Med Phys. 2003 Mar; 30(3):473-7; author reply 478-80. PMID: 12674249.
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    125. Tailor RC, Hanson WF, Ibbott GS. TG-51: experience from 150 institutions, common errors, and helpful hints. J Appl Clin Med Phys. 2003; 4(2):102-11. PMID: 12777144.
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    126. Tailor RC, Followill DS, Hernandez N, Ibbott GS, Hanson WF. Predictability of electron cone ratios with respect to linac make and model. J Appl Clin Med Phys. 2003; 4(2):172-8. PMID: 12777153.
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    127. Followill DS, Hanson WF, Ibbott GS, Eglezopoulos LR, Chui CS. Differences in electron beam dosimetry using two commercial ionization chambers and the TG-21 protocol: another reason to switch to TG-51. J Appl Clin Med Phys. 2003; 4(2):124-31. PMID: 12777147.
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    128. Followill DS, Stovall MS, Kry SF, Ibbott GS. Neutron source strength measurements for Varian, Siemens, Elekta, and General Electric linear accelerators. J Appl Clin Med Phys. 2003; 4(3):189-94. PMID: 12841788.
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    129. Cho SH, Ibbott GS. Reference photon dosimetry data: a preliminary study of in-air off-axis factor, percentage depth dose, and output factor of the Siemens Primus linear accelerator. J Appl Clin Med Phys. 2003; 4(4):300-6. PMID: 14604419.
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    130. Cadman P, Bassalow R, Sidhu NP, Ibbott G, Nelson A. Dosimetric considerations for validation of a sequential IMRT process with a commercial treatment planning system. Phys Med Biol. 2002 Aug 21; 47(16):3001-10. PMID: 12222862.
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    131. Meli JA. Let's abandon geometry factors other than that of a point source in brachytherapy dosimetry. Med Phys. 2002 Aug; 29(8):1917-8; author reply 1919-20. PMID: 12201439.
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    132. Ibbott GS, Meigooni AS, Gearheart DM. Monte Carlo determination of dose rate constant. Med Phys. 2002 Jul; 29(7):1637-8. PMID: 12148747.
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    133. Villarruel S, Ibbott GS, Lai-Fook SJ. Effect of concentration and hydration on restriction of albumin by lung interstitium. Microvasc Res. 2002 Jan; 63(1):27-40. PMID: 11749070.
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    134. Ibbott GS, Nath R. Dose-rate constant for Imagyn 125I brachytherapy source. Med Phys. 2001 Apr; 28(4):705. PMID: 11339770.
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    135. Gearheart DM, Drogin A, Sowards K, Meigooni AS, Ibbott GS. Dosimetric characteristics of a new 125I brachytherapy source. Med Phys. 2000 Oct; 27(10):2278-85. PMID: 11099194.
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    136. Popescu CC, Wise J, Sowards K, Meigooni AS, Ibbott GS. Dosimetric characteristics of the Pharma Seed model BT-125-I source. Med Phys. 2000 Sep; 27(9):2174-81. PMID: 11011748.
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    137. Williamson JF, Coursey BM, DeWerd LA, Hanson WF, Nath R, Rivard MJ, Ibbott G. Recommendations of the American Association of Physicists in Medicine on 103Pd interstitial source calibration and dosimetry: implications for dose specification and prescription. Med Phys. 2000 Apr; 27(4):634-42. PMID: 10798683.
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    138. Williamson JF, Coursey BM, DeWerd LA, Hanson WF, Nath R, Rivard MJ, Ibbott G. On the use of apparent activity (Aapp) for treatment planning of 125I and 103Pd interstitial brachytherapy sources: recommendations of the American Association of Physicists in Medicine radiation therapy committee subcommittee on low-energy brachytherapy source dosimetry. Med Phys. 1999 Dec; 26(12):2529-30. PMID: 10619235.
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    139. Mohiuddin M, Fujita M, Regine WF, Megooni AS, Ibbott GS, Ahmed MM. High-dose spatially-fractionated radiation (GRID): a new paradigm in the management of advanced cancers. Int J Radiat Oncol Biol Phys. 1999 Oct 01; 45(3):721-7. PMID: 10524428.
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    140. Parameswaran S, Brown LV, Ibbott GS, Lai-Fook SJ. Hydraulic conductivity, albumin reflection and diffusion coefficients of pig mediastinal pleura. Microvasc Res. 1999 Sep; 58(2):114-27. PMID: 10458927.
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    141. Parameswaran S, Brown LV, Ibbott GS, Lai-Fook SJ. Effect of concentration and hyaluronidase on albumin diffusion across rabbit mesentery. Microcirculation. 1999 Jun; 6(2):117-26. PMID: 10466114.
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    142. Williamson JF, Coursey BM, DeWerd LA, Hanson WF, Nath R, Ibbott G. Guidance to users of Nycomed Amersham and North American Scientific, Inc., I-125 interstitial sources: dosimetry and calibration changes: recommendations of the American Association of Physicists in Medicine Radiation Therapy Committee Ad Hoc Subcommittee on Low-Energy Seed Dosimetry. Med Phys. 1999 Apr; 26(4):570-3. PMID: 10227361.
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    143. Qiu XL, Brown LV, Parameswaran S, Marek VW, Ibbott GS, Lai-Fook SJ. Effect of hyaluronidase on albumin diffusion in lung interstitium. Lung. 1999; 177(5):273-88. PMID: 10467020.
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    144. Qiu XL, Brown LV, Parameswaran S, Ibbott GS, Lai-Fook SJ. Effect of concentration on albumin diffusion in lung interstitium. J Appl Physiol (1985). 1998 Aug; 85(2):575-83. PMID: 9688735.
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    145. Ibbott GS, Zhang Y, Mohiuddin M, Adams E. Reproduction of radiologic images on plain paper. Radiographics. 1998 May-Jun; 18(3):755-60. PMID: 9599396.
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    146. Meigooni AS, Kleiman MT, Johnson JL, Mazloomdoost D, Ibbott GS. Dosimetric characteristics of a new high-intensity 192Ir source for remote afterloading. Med Phys. 1997 Dec; 24(12):2008-13. PMID: 9434984.
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    147. Alam R, Ibbott GS, Pourang R, Nath R. Application of AAPM Radiation Therapy Committee Task Group 23 test package for comparison of two treatment planning systems for photon external beam radiotherapy. Med Phys. 1997 Dec; 24(12):2043-54. PMID: 9434989.
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    148. Ibbott GS, Attix FH, Slowey TW, Fontenla DP, Rozenfeld M. Uncertainty of calibrations at the accredited dosimetry calibration laboratories. Med Phys. 1997 Aug; 24(8):1249-54. PMID: 9284248.
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    149. Ibbott GS, Maryanski MJ, Eastman P, Holcomb SD, Zhang Y, Avison RG, Sanders M, Gore JC. Three-dimensional visualization and measurement of conformal dose distributions using magnetic resonance imaging of BANG polymer gel dosimeters. Int J Radiat Oncol Biol Phys. 1997 Jul 15; 38(5):1097-103. PMID: 9276377.
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    150. Meigooni AS, Sanders MF, Ibbott GS, Szeglin SR. Dosimetric characteristics of an improved radiochromic film. Med Phys. 1996 Nov; 23(11):1883-8. PMID: 8947902.
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    151. Maryanski MJ, Ibbott GS, Eastman P, Schulz RJ, Gore JC. Radiation therapy dosimetry using magnetic resonance imaging of polymer gels. Med Phys. 1996 May; 23(5):699-705. PMID: 8724743.
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    152. Thrall DE, Ibbott GS. Physics and treatment planning. Semin Vet Med Surg (Small Anim). 1995 Aug; 10(3):135-47. PMID: 8532969.
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    153. Maryanski MJ, Schulz RJ, Ibbott GS, Gatenby JC, Xie J, Horton D, Gore JC. Magnetic resonance imaging of radiation dose distributions using a polymer-gel dosimeter. Phys Med Biol. 1994 Sep; 39(9):1437-55. PMID: 15552115.
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    154. Schulz RJ, Maryanski MJ, Ibbott GS, Bond JE. Assessment of the accuracy of stereotactic radiosurgery using Fricke-infused gels and MRI. Med Phys. 1993 Nov-Dec; 20(6):1731-4. PMID: 8309446.
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    155. Hazuka MB, Stroud DN, Adams J, Ibbott GS, Kinzie JJ. Prostatic thermoluminescent dosimeter analysis in a patient treated with 18 MV X rays through a prosthetic hip. Int J Radiat Oncol Biol Phys. 1993 Jan 15; 25(2):339-43. PMID: 8420884.
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    156. Kantorowitz DA, Miller GJ, Ferrara JA, Ibbott GS, Fisher R, Ahrens CR. Preoperative versus postoperative irradiation in the prophylaxis of heterotopic bone formation in rats. Int J Radiat Oncol Biol Phys. 1990 Dec; 19(6):1431-8. PMID: 1702089.
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    157. Hazuka MB, Ibbott GS, Kinzie JJ. Hip prostheses during pelvic irradiation: effects and corrections. Int J Radiat Oncol Biol Phys. 1988 Jun; 14(6):1311-7. PMID: 3133330.
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    158. Watts DL, Ibbott GS. Measurement of beam current and evaluation of scatter production in an 18-MeV accelerator. Med Phys. 1987 Jul-Aug; 14(4):662-4. PMID: 3627007.
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    159. Ibbott GS. Determining costs in radiation therapy. Radiol Manage. 1987; 9(4):30-4. PMID: 10284736.
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    160. Shabason L, Hendee WR, Ibbott GS. A comparison of photon dosages behind high and low Z shielding blocks in electron fields. Int J Radiat Oncol Biol Phys. 1981 Jan; 7(1):125-8. PMID: 6790484.
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    161. Ibbott GS. Radiation therapy treatment planning and the distortion of CT images. Med Phys. 1980 May-Jun; 7(3):261. PMID: 7393154.
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    162. Hills JF, Ibbott GS, Hendee WR. Computerized patient contours using the scanning arm of compound B-scanner. Med Phys. 1979 Jul-Aug; 6(4):309-11. PMID: 481358.
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    163. Paquette FR, Ahuja AS, Carson PL, Mack LA, Ibbott GS, Johnson ML. A comparative study of computerized tomography and ultrasound imaging for treatment planning of prostatic carcinoma. Int J Radiat Oncol Biol Phys. 1979 Feb; 5(2):289-94. PMID: 457474.
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    164. Hallberg JR, Ibbott GS, Carson PL, Hendee WR. Computational analysis and dosimetric evaluation of a commercial irregular-fields computer program. Med Phys. 1977 Nov-Dec; 4(6):528-34. PMID: 412050.
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    165. Ibbott GS, Barnes JE, Hall GR, Hendee WR. Stem corrections for ionization chambers. Med Phys. 1975 Nov-Dec; 2(6):328-30. PMID: 1196264.
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    166. Thieme GA, Hendee WR, Ibbott GS, Carson PL, Kirch DL. Cross-sectional anatomic images by gamma ray transmission scanning. Acta Radiol Ther Phys Biol. 1975 Feb; 14(1):81-111. PMID: 1101651.
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    167. Ibbott GS, Hendee WR, Crusha KL, Hall GR. Record-keeping in a radiation safety office by timesharing digital computer. Health Phys. 1971 Oct; 21(4):581-4. PMID: 5115131.
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    168. Ibbott GS, Hendee WR. Beam-shaping platforms and the skin-sparing advantage of Co60 radiation. Am J Roentgenol Radium Ther Nucl Med. 1970 Jan; 108(1):193-6. PMID: 5410702.
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    169. Gower RG, Hendee WR, Ibbott GS. Ultraviolet-induced changes in residual thermoluminescence from gamma-irradiated lithium fluoride. Health Phys. 1969 Oct; 17(4):607-11. PMID: 5344471.
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    170. Hendee WR, Ibbott GS, Gilbert DB. Effects of total dose on energy dependence of TLD-100 LiF dosimeters. Int J Appl Radiat Isot. 1968 May; 19(5):431-7. PMID: 5660918.
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    171. Hendee WR, Golden R, Garciga CE, Gilbert DB, Ibbott GS. Depth dose measurements with lithium fluoride. Am J Roentgenol Radium Ther Nucl Med. 1968 Mar; 102(3):694-6. PMID: 5639585.
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    172. QA in radiation therapy. Journal of Physics: Conference Series. 250:1-7.
    173. Three-dimensional dosimetry of a beta-emitting radionuclide using PRESAGE® dosimeters. Journal of Physics: Conference Series. 250:470-472.
    174. Guidelines by the AAPM and GEC-ESTRO on the use of innovative brachytherapy devices and applications. Medical Physics. 43:3178-3205.
    175. Oncology Scan - Physics. International Journal of Radiation Oncology Biology Physics. 82:1557-1558.
    176. Investigation of photon and proton overlapping fields in PRESAGE® dosimeters. Journal of Physics: Conference Series. 444.
    177. Comparison of an anthropomorphic PRESAGE® dosimeter and radiochromic film with a commercial radiation treatment planning system for breast IMRT. Journal of Applied Clinical Medical Physics. 15:363-374.
    178. A flexible Monte Carlo tool for patient or phantom specific calculations. Journal of Physics: Conference Series. 102.
    179. Y2K & Medical facilities using radiation sources. IAEA Bulletin. 41:40.
    180. Dose verification of stereotactic radiosurgery treatment for trigeminal neuralgia with presage 3D dosimetry system. Journal of Physics: Conference Series. 250:283-286.
    181. Stage III non-small cell lung cancer. Radiology. 278:214-222.
    182. Spatial precision in magnetic resonance imaging-guided radiation therapy. International Journal of Radiation Oncology Biology Physics. 95:1304-1316.
    183. Investigating the feasibility of 3D dosimetry in the RPC IMRT H&N phantom. Journal of Physics: Conference Series. 164.
    184. Relative stopping power measurements to aid in the design of anthropomorphic phantoms for proton radiotherapy. Journal of Applied Clinical Medical Physics. 15:121-126.
    185. Evaluation of 4D CT acquisition methods designed to reduce artifacts. Journal of Applied Clinical Medical Physics. 16:23-32.
    186. Overview on the dosimetric uncertainty analysis for photon-emitting brachytherapy sources, in the light of the AAPM Task Group No 138 and GEC-ESTRO report. Metrologia. 49.
    187. Reference dosimetry in magnetic fields. Medical Physics. 43:4915-4927.
    188. American Journal of Physics. 48:461-464.
    189. 3H-toluene, 3H-water and 3H-hexadecane as internal standards for toluene- and dioxane-based liquid scintillation cocktails. The International Journal Of Applied Radiation And Isotopes. 23:90-95.
    190. An investigation into the robustness of Optical-CT dosimetry of a radiochromic dosimeter compatible with the RPC Head-and-Neck Phantom. Journal of Physics: Conference Series. 164.
    191. Quality assurance for clinical trials. Frontiers in Oncology. 3 DEC.
    192. Investigation of 3D dosimetry for an anthropomorphic spine phantom. Journal of Physics: Conference Series. 444.
    193. Quality assurance workshops for radiation therapy technologists. 99-100+130.
    194. Physics Instruction for Radiologic Technologists. American Journal of Physics. 42:465-473.
    195. Characterization of a normoxic polyacrylamide gel using MRI and optical CT. Journal of Physics: Conference Series. 164.
    196. Erratum. Medical Physics. 37:2396.
    197. Dosimetric comparison of 3DCRT, IMRT and VMAT for spine radiotherapy based on secondary cancer risk. 633-636.
    198. Modification and validation of an analytical source model for external beam radiotherapy Monte Carlo dose calculations. Medical Physics. 43:4842-4853.
    199. Response to "The need for a dose calibration protocol for brachytherapy sources" [Med. Phys. 34, 367-368 (2007)] [3]. Medical Physics. 34:369-370.
    200. Feasibility of PET/CT 3-D dosimetry for proton-activated PRESAGE® dosimeters. Journal of Physics: Conference Series. 573.
    201. Journal of Physics. Journal of Physics: Conference Series. 444.
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    203. Comparison of 2D and 3D Gamma calculations for an IMRT QA phantom. Journal of Physics: Conference Series. 573.
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