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目的探讨彩色多普勒超声与磁共振成像(MRI)在原发性肝外胆管癌患者诊断中的应用价值。方法回顾性分析120例原发性肝外胆管癌患者彩色多普勒超声和MRI资料,比较两种检查方法诊断的阳性率、误诊率、漏诊率及梗阻部位准确率。结果两种检查方法对肝外胆管癌诊断的阳性率、误诊率及梗阻部位准确率差异无统计学意义(P>0.05);但彩色多普勒超声检查漏诊率明显高于MRI(P<0.05)。结论彩色多普勒超声可作为肝外胆管癌首选影像学筛查方法,但对于临床高度怀疑肝外胆管癌、而彩色多普勒超声未检出者应加行MRI,以提高诊断的准确性。
Objective To investigate the value of color Doppler ultrasound and magnetic resonance imaging (MRI) in the diagnosis of primary extrahepatic cholangiocarcinoma. Methods The color Doppler ultrasound and MRI data of 120 patients with primary extrahepatic cholangiocarcinoma were retrospectively analyzed. The positive rate, misdiagnosis rate, misdiagnosis rate and obstruction rate of the two methods were compared. Results There was no significant difference in the positive rate, misdiagnosis rate and accuracy of the obstructed site between the two methods (P> 0.05). However, the misdiagnosis rate of color Doppler ultrasonography was significantly higher than that of MRI (P <0.05 ). Conclusions Color Doppler ultrasonography can be used as the first imaging method for extrahepatic cholangiocarcinoma. However, MRI is highly suspected in patients with extrahepatic cholangiocarcinoma, and color Doppler ultrasound should be used to improve the diagnostic accuracy .