目的探讨多排螺旋CT及MRI在 胆道梗阻性病变患者中的临床诊断价值 差异。方法 选取112例经手术病理检查 确诊的胆道梗阻性病变患者为研究对象, 均行多排螺旋CT及MRI检查，详细记录 检查结果。以手术病理检查结果为“金 标准”，评估多排螺旋CT及MRI在胆道 肠梗阻性疾病中的定位、定性诊断符合 率差异。结果 ①多排螺旋CT病灶定位符 合率为95.5%，同MRI的97.3%对比无统计 学意义(P>0.05)；②MRI定性诊断胆道梗 阻性疾病的准确率为91.1%，显著高于多 螺旋CT的77.7%，差异具有统计学意义 (P<0.05)。结论 对疑似胆道梗阻性疾病 患者予以多序列MRI检查，定位及定性诊 断准确率较高，利于提高早期诊断准确性 及有效性，对节省诊疗时间、促进后续治 疗工作的顺利开展具有积极影响，值得临 床推广。

Objective To investigate the differnce in clinical diagnostic value of multislice spiral CT and MRI in patients with biliary obstructive diseases. Methods 112 patients with biliary obstructive diseasesconfirmed by operative and pathologicalexamination were selected as the research objects.All the patients were examined by multi-slice spiral CT and MRI, and the results were recorded in detail. The results of operative and pathologicalexamination were taken as the gold standard to evaluate the differences in location and the accordance rate of qualitative diagnosis ofmulti-slice spiral CT and MRI. Results ①The coincidence rate ofmulti-slice spiral CT in lesionlocation was 95.5%. Compared with 97.3% of MRI, the difference was not statistically significant（P>0.05）. ②The accuracy rate of MRI in qualitative diagnosis ofbiliary obstructive diseases was 91.1% which was significantly higher than 77.7% ofmulti-slice spiral CT, and the difference was statistically significant (P<0.05). Conclusion To apply multiple-sequence MRI in diagnosis of patients with suspected biliary obstructiv diseases, the accuracy rate of location and qualitative diagnosis is relatively higher, which is beneficial to improve the accuracy and effectiveness of early diagnosis and has positive on saving consultation hours and carrying out the follow-uptreatmentsmoothly. It is worthy of clinical promotion.