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.

Annotation

coordinate with organ or disease /diag image; do not index ENDOSCOPY or specific endoscopic technique unless also discussed

DUI

D019160 MeSH Browser

CUI

M0028566

Previous indexing

Endoscopy (1984-1996); specific endoscopic technique (1984-1996); Ultrasonics (1983-1984); Ultrasonography (1984-1996)

History note

97

Public note

97