Ultrasonography of internal organs using an ultrasound transducer sometimes mounted on a fiberoptic endoscope. In endosonography the transducer converts electronic signals into acoustic pulses or continuous waves and acts also as a receiver to detect reflected pulses from within the organ. An audiovisual-electronic interface converts the detected or processed echo signals, which pass through the electronics of the instrument, into a form that the technologist can evaluate. The procedure should not be confused with ENDOSCOPY which employs a special instrument called an endoscope. The "endo-" of endosonography refers to the examination of tissue within hollow organs, with reference to the usual ultrasonography procedure which is performed externally or transcutaneously.

Descriptor ID	D019160
MeSH Number(s)	E01.370.350.850.280
Concept/Terms	Endosonography Endosonography Endosonographies Endoscopy, Echo Echo Endoscopies Endoscopies, Echo Ultrasonic Endoscopy Echo-Endoscopy Echo Endoscopy Echo-Endoscopies Endoscopy, Ultrasonic Endoscopies, Ultrasonic Ultrasonic Endoscopies Ultrasonography, Endoscopic Ultrasonography, Endoscopic Endoscopic Ultrasonography Endoscopic Ultrasonographies Ultrasonographies, Endoscopic

Below are MeSH descriptors whose meaning is more general than "Endosonography".

Below are MeSH descriptors whose meaning is related to "Endosonography".

Below are MeSH descriptors whose meaning is more specific than "Endosonography".