endoscopic ultrasonography meaning

[Medicine]
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.

• ultrasonography:    Noun: ultrasonogra ...
• endoscopic:    Adjective: endosco ...
• a-scan ultrasonography:    Noun: A-scan ultra ...

Examples

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1. an endoscopic ultrasonography showed that the hyperechoic lesion originated in the submucosal layer of the duodenal wall
2. in this article, we reviewed the value of endoscopic ultrasonography in the diagnosis and interventional therapy for panceatic diseases
3. Endoscopic ultrasonography is most commonly used in the upper digestive tract and in the respiratory system.
4. M . Massari, M . De Simone, U . Cioffi, F . Gabrielli, P . Boccasanta, L . Bonavina : Endoscopic ultrasonography in the evaluation of leiomyoma and extramucosal cysts of the esophagus.
5. M . Massari, U . Cioffi, M . De Simone, E . Lattuada, M . Montorsi, A . Segalin, L . Bonavina : Endoscopic ultrasonography for preoperative staging of esophageal carcinoma ..