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评价ＣＴ在梗阻性黄疸检查中定位和定性诊断的准确性。回顾性分析经手术、病理和ＣＴ追踪确诊的、术前均行ＣＴ检查的梗阻性黄疸病变５４例，良性２１例，恶性３３例。本组资料均显示梗阻性黄疸病变中有不同程度的肝内或／和肝外胆管扩张，部分合并胆囊扩大。其ＣＴ表现均显示为低密度环状或条状影，胆囊直径增大。ＣＴ诊断梗阻平面的准确性为１００％，对梗阻性黄疸定性诊断的准确性为８５２％。肝胆管扩张的程度和梗阻平面的形态学表现对定性诊断具有重要价值。ＣＴ对梗阻性黄疸的定位诊断具有高度的准确性，ＣＴ结合其它影像学检查方法和临床资料综合分析，可提高定性诊断梗阻性黄疸的准确性。
Evaluation of CT in the diagnosis of obstructive jaundice in the localization and qualitative diagnosis of accuracy. Retrospective analysis of 54 cases of obstructive jaundice, 21 cases of benign and 33 cases of malignant, confirmed by surgery, pathology and CT tracing. The data in this group have shown varying degrees of intrahepatic or / and extrahepatic bile duct dilatation in obstructive jaundice and some with enlarged gallbladder. The CT findings showed low density ring or strip shadow, gallbladder diameter increased. The accuracy of CT diagnosis of obstruction plane was 100%, and the accuracy of qualitative diagnosis of obstructive jaundice was 852%. The degree of hepatobiliary dilatation and the morphology of obstructive planes are of great value for qualitative diagnosis. CT diagnosis of obstructive jaundice has a high degree of accuracy, CT combined with other imaging studies and clinical data comprehensive analysis, can improve the accuracy of qualitative diagnosis of obstructive jaundice.