McGrath F P, Gibney R G, Burhenne H J
Department of Radiology, University of British Columbia, Vancouver, Canada.
Clin Radiol. 1992 Jul;46(1):34-7. doi: 10.1016/s0009-9260(05)80031-5.
A prospective blinded comparison of ultrasonography (US) and oral cholecystography (OCG) was performed in 100 patients with symptomatic gall-stones to determine whether US would enable an accurate assessment of cystic duct patency to be made. Patency of the cystic duct was defined as gall-bladder opacification on OCG or a greater than 20% decrease in gall-bladder volume by US post-fatty meal. The ellipsoid method of volume measurement was used. Any patient who had a non-opacified gall-bladder on OCG but a greater than 20% volume decrease on US had cholescintigraphy performed (DISIDA). Oral cholecystography demonstrated cystic duct patency in 88 patients (88%), and fatty-meal gall-bladder US met the specified study criteria for patency in 86 patients (86%). False negative results were identified in four of the OCG and in six of the US examinations. The results of this study indicate that gall-bladder sonography with a post-fatty meal contraction of greater than 20% is a very accurate predictor of cystic duct patency. A contraction of less than 20%, however, cannot be considered a reliable predictor of cystic duct occlusion.
对100例有症状胆结石患者进行了超声检查（US）和口服胆囊造影（OCG）的前瞻性盲法比较，以确定US是否能准确评估胆囊管通畅情况。胆囊管通畅定义为OCG检查时胆囊显影，或US检查时进食脂肪餐后胆囊体积减少超过20%。采用椭球体体积测量法。任何OCG检查时胆囊未显影但US检查时体积减少超过20%的患者均进行了胆囊闪烁扫描（DISIDA）。口服胆囊造影显示88例患者（88%）胆囊管通畅，脂肪餐后胆囊US检查符合通畅指定研究标准的有86例患者（86%）。OCG检查中有4例和US检查中有6例出现假阴性结果。本研究结果表明，进食脂肪餐后胆囊收缩超过20%的胆囊超声检查是胆囊管通畅的非常准确的预测指标。然而，收缩小于20%不能被视为胆囊管阻塞的可靠预测指标。
