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目的 :通过与ERCP/PTC对比 ,评价MRCP对恶性胆道狭窄的定位、定性的准确性。材料与方法 :57例恶性胆道狭窄患者 ,采用不屏气或屏气快速自旋回波(FSE)序列扫描 ,对照ERCP或PTC检查和病理结果 ,评价MRCP对恶性胆道狭窄征象的显示能力。结果 :MRCP诊断恶性胆道狭窄的定位准确性及定性准确性分别为100 %和87 8%,经统计学检验证实与ERCP/PTC不存在显著性差异。对病变胆管截断、狭窄及管壁不规则等征象的显示率为ERCP、PTC的74 0 %。对肿瘤的显示率为77 2 %。结论 :MRCP对于恶性胆道狭窄的定位、定性准确性与ERCP、PTC相似 ,但显示病变形态较ERCP和PTC差。
OBJECTIVE: To evaluate the location and qualitative accuracy of MRCP for malignant biliary strictures by comparing with ERCP / PTC. MATERIALS AND METHODS: Fifty-seven patients with malignant biliary stricture were evaluated with MRCP for the manifestation of malignant biliary strictures by using breath-hold or breath-hold rapid spin echo (FSE) sequence scanning and ERCP or PTC examination and pathological findings. Results: The accuracy and accuracy of MRCP in the diagnosis of malignant biliary stricture were 100% and 87%, respectively. There was no significant difference between ERCP / PTC and MRCP. On the lesion bile duct truncation, stenosis and wall irregularities and other signs of the rate of ERCP, PTC 74%. The rate of tumor display was 77 2%. Conclusion: The location of MRCP for malignant biliary stricture is similar to that of ERCP and PTC, but the pathological changes of MRCP are worse than those of ERCP and PTC.