Usefulness of intraductal ultrasonography in gallbladder disease

Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine
Y WatanabeT Hayakawa

Abstract

This study was designed to compare intraductal ultrasonography of the gallbladder wall with histopathologic findings and to assess the clinical usefulness of this imaging method in gallbladder disease. Thirty-one gallbladder specimens were examined by intraductal ultrasonography retrospectively. The gallbladder is composed of three layers: an innermost hyperechoic layer, a middle hypoechoic layer, and an outermost hyperechoic layer. The second layer on ultrasonograms corresponds to the muscle layer plus the fibrous tissue of the superficial perimuscular connective tissue layer. In cases in which the thickness of the second layer was 500 microns or less, little fibrous tissue was seen and the second layer was approximately identical to the muscle layer on sonograms. Clinical study was performed on 22 gallbladders. The use of a guidewire through the papilla facilitated intraductal ultrasonographic examination. The intraductal sonographic probe could be inserted into the gallbladder fundus in 13 of 22 cases. In nine unsuccessful cases, technical difficulties were as follows: sharply angulated gallbladder (four cases), stenosis of the gallbladder (two cases), difficulty in transmitting power in the correct direction (three cases). ...Continue Reading

Citations

Mar 21, 2006·Journal of Hepato-biliary-pancreatic Surgery·Hiroki KawashimaHidemi Goto
Jun 11, 2003·Journal of Gastroenterology and Hepatology·Katsushi NiwaHidemi Goto

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