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Ultrasonic Diagnosis of Gallbladder and Bile Duct Diseases Toshio Wagai 1 1Medical Ultrasonics Research Center, Juntendo University, School of Medicine pp.433-443
Published Date 1970/4/25
DOI https://doi.org/10.11477/mf.1403111247
  • Abstract
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 In the past x-ray has much contributed to viewing living tissues in abdominal organs as a diagnostic tool in accordance with development of various contrast methods. On the other hand, a new technique of ultrasound, developed as one of the means of living tissue visualization, has offered many advantages over the x-ray. In this paper is reported an application of this method to the diagnosis of gallbladder and bile ductdiseases.

 For this purpose, ultrasonotomography by means of contact compound scanning method has mainly been applied. While cholecystography has done much towards the diagnosis of cholelithiasis with development of contrast media and examination methods, intravenous cholecystography is of little account for combined disorders of the liver such as jaundice with obstruction of the bile duct. Excellent capability of ultrasound in viewing living soft tissue has thus been exploited although further improvement of this method is urgently expectecl.

 For viewing the gallbladder and bile duct by ultrasound, the oblique cross-sectional tomograms of right upper abdomen along the right costal arch are usually used. By using ultrasono-tomo-graphy, various kinds of soft tissue organs such as the gallbladder, bile duct, liver, kidney, aorta and others can be observed in natural condition of living body without any contrast medium as in cholecystography. Gallbladder and bile duct can be observed as an outlined non-reflecting transparent area and gallstones can be detected within it.

 In the case of cholelithiasis, ultrasonic examination was very effective for the detection of gallstones, especially when the gallbladder could not demonstrated by x-ray. In such cases, ultrasonic diagnosis presented an accuracy of 83%. In addition, the same technique proved useful for diagnosis of general abdominal tumors-both cystic and solid not only in adults but also in infant patients as it gives no pain or danger.


Copyright © 1970, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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