胆管梗阻患者的磁共振成像与超声影像比较

Comparison between ultrasonic and magnetic resonance cholangiopancreatography of the patients with bile obstruction

目的探讨超声和磁共振成像胰胆管水成像(MRCP)诊断梗阻性黄疸的差异。方法选择经过磁共振成像(MR I、MRCP)和超声检查并经过手术证实为梗阻性黄疸患者45例,分析两种影像学判定梗阻部位和疾病定性的准确性。结果对于结石,MR I结合MRCP定位的准确率为95.56%;超声的准确率为77.78%。MR I(MRCP)和超声定性的准确率不具有统计学差异(χ2=1.083,P>0.05),但超声准确率(96.15%)大于磁共振。对于恶性梗阻,MR I(MRCP)和超声定位的准确率分别为94.74%和68.42%(2χ=4.38,P<0.05)。结论超声对于结石的诊断敏感性高,但对于良恶性病变所致黄疸的定性和定位,磁共振成像(MR I、MRCP)则更具有优势。

Objective To explore diagnostic difference between the results of the ultrasonic （US） and magnetic＇ resonance cholangiopancreatography （MRCP） in the patients with bile obstruction. Methods 45 cases diagnosed by US, MRI, MRCP and verified by surgery were selected to analyze the accuracy of the location and nature of malignant with these two methods. Results The accuracy of MRI and MRCP was 95.56%, that of the US was 77.78% in the diagnosis of bill stone（χ^2 = 1. 083, P 〉 0. 05 ）, but the US＇results （96.15%） was better than the MRI＇s The accuracies of US and MRI were respectively 68.42% and 94.74% in the diagnosis of malignant bill duct obstruction （χ^2 = 4. 38,P 〈 0.05）. Conclusions The diagnostic＇sensitivity of US is better than that of MRI in the stone, but the sensitivity of MRI is higher than that of US in the malignant bill duct obstruction diseases.