超声和CT诊断梗阻性黄疸的对比研究

目的 比较超声和ＣＴ诊断梗阻黄疸的价值。方法 接受了手术治疗的梗阻性黄疸患者７６例，超声检查７６例，ＣＴ检查５７例，梗阻部分为三段；上段为肝门处胆囊水平以上的肝内外胆管，中段为胰腺以上的胆总管，下段为胰周围的胆管。将超声、ＣＴ对梗阻部位及病罟的诊断分别与手术病理对照，所有数据的均经统计学处理。结果 超声、ＣＴ对梗阻部位诊断蜷伏铉分别为９０．８％、９１．２％，对结石及恶性病变诊断准确率分别为９４．７

Obstructive Jaundice : Compared Ultrasonography with Computed Tomography

Purpose 76 patients with obstructive jaundice were treated by surgical treatment. The value of Ultrasonography (US) to demonstrate the level and cause of obstructive jaundice were compared with Computed Tomography (CT). Methods US was performed in 76 patients,and CT in 57 patients. The level of biliary tract was defiended as pancreatic,suprapancreatic,or at the level of the porta hepatis. Causes of obstruction included choledocholithiasis,malignent tumor,pancreatitis and other benign tumor. The diagnosis of US and CT were compared with pathological results. Results Ths level of obstruction was correctly indicated by US in 90.8% of patients, and by CT in 91.2%. The cause was correctly indicated by US in 94.7% for choledocholithiasis and 89.6% for malignent tumor,by CT in 92.9% for choledocholithiasis and 91.2% for malignent tumor. We also found that both US and CT had a low accuracy in diagnosing obstructive jaundice caused by benign diseases. Conclusion US as a single radiological investigation is sufficient in the evaluation of the majority of patients with obstructive jaundice. CT shuold be done only when US gives equivocal findings.