Titlebook: Imaging and Computing in Gastroenterology; IMA.GO 90 P. R. Monte,N. D’Imperio,G. Giuliani Piccari Conference proceedings 1991 Springer-Verl

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Endoscopic Laser Therapy of Colorectal Tumors,early as 1917, but it was only in the 1950s that laser sources became available for practical use [32]. The endoscopic use of lasers in the treatment of gastrointestinal diseases began in the past decade when the application of optic fibers allowed the transmission of a laser beam [21]. The optic fi

高深莫测

Recent Advances of Diagnostic Ultrasonography in Gastroenterology, most recent and important developments in the method are represented by echo-guided biopsy, echoendoscopy, echo Doppler, and therapeutic and operational US. These subjects are dealt with in detail by other authors in this volume; we limit our discussion to recent applications of diagnostic US with

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recession

Allowance

Doppler Ultrasound in Hepatic Hemodynamics, thus providing an additional facility in the diagnostic evaluation of the abdominal vessels. The Doppler principle, on which these instruments are based, observes that when an ultrasound beam is reflected from a moving object, for example, red blood cells, the returning beam has a different frequen

Flinch

半球

Abrade

Schlemms-Canal

Imaging of Hepatic Mass Lesions,C to CCC is generally 4–8:1, but it is currently 16:1 in Japan [2] where HCC has increased remarkably in recent years [3]. Hemangioma is the most frequent of all benign mass lesions of the liver, and my discussion therefore centers around the differential diagnosis of HCC and hemangioma.

anachronistic