【摘要】 目的 探討常規MRI掃描及胰膽管造影（MRCP）對膽管梗阻性疾病的臨床診斷價值。 方法 2006年4月-2010年6月，對59例膽管梗阻性疾病患者行常規MRI及MRCP檢查，其中18例行動態增強掃描，并與臨床診斷或手術、病理結果對照分析。MRCP采用不屏氣厚層快速自旋回波（FSE）序列重度T2WI掃描，原始圖像以最大信號強度投影（MIP）法進行三維重建。 結果 MRI及MRCP對膽管梗阻程度的判斷和定位診斷準確率為100.0%，定性診斷準確率為91.5%，其中MRCP診斷膽管結石和惡性膽管梗阻的準確率分別為96.8%和86.9%。 結論 MRCP對膽管梗阻的定位診斷準確，結合3D原始圖像、常規MRI掃描及動態增強掃描，對膽管結石和惡性膽管梗阻的定性診斷有很高的準確性。
【Abstract】 Objective To evaluate the clinical diagnosis value of MRI and cholangiopancreatography (MRCP) in diagnosis of biliary obstructive disease. Methods Routine MRI and MRCP were performed on 59 patients between April 2006 and June 2010, in which dynamic enhance scan was performed on 18 patients. The results were compared with clinical diagnosis or surgical findings and pathological examination. Non-breath-hold thick slices heavy T2 weighted TSE sequence was used. The original images were reconstructed by using three-dimensional maximum-intensity-projection (MIP) algorithm. Results The accuracy of MRI and MRCP in the detection of the degree and level of bile duct obstruction was 100.0 % and the accuracy for evaluating the causes of obstruction was 91.5 %. In the diagnosis of bile duct stone and malignant biliary obstruction, the diagnostic rate of MRCP was 96.8 % and 86.9%. Conclusion Routine MRI and MRCP examination can accurately define the level of bile duct obstruction. Combining with the original images and routine images and dynamic enhance scan, the specificity for the diagnosis of bile duct stone and malignant biliary obstruction is high.
Citation： LI Benfeng,LUO Lin,GAN Yanying,ZHONG Kai,DENG Juan,ZHANG Xiaoyu. MRI Combined with Cholangiopancreatography in Diagnosis of Bile Duct Obstruction. West China Medical Journal, 2011, 26(3): 403-406. doi: Copy
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