HASTE法磁共振胰胆管造影诊断胆道病变的应用价值

The application value of HASTE sequence magnetic resonance cholangiopancreatography in diagnosing biliary tract diseases

目的 探讨HASTE法单次屏气磁共振胰胆管造影(HASTE-MRCP)诊断胆道病变的应用价值。方法对照分析75例胆道病变患者的HASTE-MRCP影像和手术结果,并与经皮肝穿刺胆管造影(PTC)比较。结果HASTE-MRCP诊断胆道病变,正确率96％(72/75);诊断胆管恶性梗阻灵敏度97.1％,特异度95％,阳性预测值94.4％,阴性预测值97.4％。35例恶性胆管梗阻中,HASTE-MRCP显示癌肿32例,其癌肿发现率高于PTC(8/35)。结论HASTE-MRCP在胆道病变诊断中具有准确的定性诊断价值。

Objective To evaluate the clinical application of half-Fourier acquisition single - shot turbo SE-sequence single breah - hold magnetic resonance cholangiopancreatography (HASTE - MRCP) in diagnosing biliary tract diseases. Methods HASTE - MRCP was performed in 75 patients with biliary tract diseae. HASTE - MRCP findings was compared with those of percutaneous transhepatic cholangiography (PTC) and surgical outcome. Results Diagnostic HASTE- MRCP examinations were performed in all 75 patients. HASTE - MRCP yielded an accuracy of 96% in diagnosing biliary tract disease (n=72).The sensitivity, specificity, positive predictive value and negative predictive value of HASTE-MRCP in diagnosing malignant obstruction of bile duct was 97. 1%, 95%, 94.4% and 97.4%, respectively. In 35 cases of malignant obstruction, 32 cases were depicted the carcinomatic mass in HASTE- MRCP, while 8 were delineated the mass in PTC. The detection rate of the mass of cholangiocarcinoma by HASTE - MRCP was higher than that by PTC(P < 0.01). Conclusion HASTE-MRCP enables to accurately evaluate biliary tract disease and make definite diagnoses, which is a potential alternative of PTC in a large extent.