为了在T管或其他胆道直接造影过程中减少或避免胆树中有空气注入或存留，以减少其与结石负影混淆而致的误诊，作者设计了一种新的胆道直接造影法，并连续对60例患者共作90次造影，随机分为2组：其中新法组36例45次，经细内套管行胆道直接造影；对照组即旧法组24例45次，比较分 In order to reduce or avoid air injection or retention in the gallbladder during T-tube or other biliary direct radiography to reduce misdiagnosis due to confusion with the stone’s shadow, the authors devised a new direct biliary direct radiography and continuous A total of 60 patients were made 90 times a total of 90 radiographs were randomly divided into two groups: 36 cases of which 45 cases of new method group, through the small bile duct biliary direct imaging; control group that old method group 24 cases 45 times,