肥厚性幽门狭窄的超声“双轨征”

Ultrasonic "double track" sign in hypertrophic pyloric stenosis.

作者信息

Cohen H L, Schechter S, Mestel A L, Eaton D H, Haller J O

出版信息

J Ultrasound Med. 1987 Mar;6(3):139-43. doi: 10.7863/jum.1987.6.3.139.

DOI:10.7863/jum.1987.6.3.139

Abstract

Ultrasound has been used in the diagnosis of hypertrophic pyloric stenosis since the first reports of its use with contact B mode scanners. Real-time imaging has allowed measurements of pyloric diameter, length, and muscle wall thickness. Wall thickness measurements taken with the pylorus in longitudinal (elongated) view improve diagnostic accuracy. Fluid aided real-time examination of 10 cases showed the ultrasound equivalent of the "double track" sign. This finding is the result of pyloric fluid compressed into smaller tracks as it is impinged upon circumferentially by the thickened circular muscle. This sign, previously seen in barium studies, although nonspecific, may prove to be a sensitive diagnostic criterion.

摘要

自首次报道使用接触式B型扫描仪诊断肥厚性幽门狭窄以来，超声已被用于该疾病的诊断。实时成像能够测量幽门直径、长度和肌壁厚度。在纵向（拉长）视图下测量幽门壁厚度可提高诊断准确性。对10例患者进行的液体辅助实时检查显示出超声等效的“双轨征”。这一发现是由于增厚的环形肌沿圆周方向挤压幽门内的液体，使其被压缩成更窄的通道所致。此征象先前在钡剂造影研究中可见，虽然缺乏特异性，但可能是一项敏感的诊断标准。