胆道系统内气体的B超表现。

The B-scan ultrasonic appearances of gas in the biliary tree.

作者信息

Chu J M, Husband J E, Cosgrove D O, McCready V R

出版信息

Br J Radiol. 1978 Sep;51(609):728-30. doi: 10.1259/0007-1285-51-609-728.

Abstract

Gas in the biliary tree has a striking but not unique ultrasonic appearance consisting of acoustic shadows trailing behind well-defined discrete high amplitude echoes deep within the liver parenchyma, and may be mimicked by intrahepatic gall stones and calcified tumours and granulomas. It interferes with assessment of liver structure, and renders ultrasound B-scan unreliable for the detection of liver metastases. Computed tomography remains unaffected by biliary gas.

摘要

胆道积气具有显著但并非独特的超声表现，表现为在肝实质深部清晰界定的离散高振幅回声后方伴有声影，可能被肝内胆结石、钙化肿瘤及肉芽肿所模拟。它干扰肝脏结构的评估，使超声B超扫描在检测肝转移方面不可靠。计算机断层扫描不受胆道积气的影响。