目的探讨CT及MRI在前列腺癌 临床分期中的应用价值差异。方法 选 取124例经外科手术病理检查确诊的前列 腺癌患者为研究对象,均予以术前CT及 MRI检查。以术后病理分期结果为“金标 准”，评估CT及MRI分期的符合率差异。 结果 MRI正确诊断A期18例(78.3%)，B期 21例(75.0%)，C期36例(85.7%)，D期27例 (87.1%)；CT正确诊断A期10例(43.5%)， B期13例(46.4%)，C期35例(83.3%)，D 期26例(83.9%)；两种检查方法在C、D 期诊断准确率对比上均无统计学意义(P ＞0.05)；A、B期时，MRI分期诊断准确 率明显高于CT，差异具有统计学意义(P ＜0.05)。结论 MRI检查在A、B期前列腺 癌患者的分期准确率较CT检查高，临床可 将该检查方案应用于前列腺癌患者的术前 分期评估工作中，为治疗方案的拟定提供 依据，值得临床推广。

Objective To investigate the differences in the application value of CT and MRI in the clinical staging of prostaticcancer. Methods 124 patients with prostaticcancer comfirmed by surgical and pathological examination who were treated in the hospital during June 2012 to April 2015 were selected as the research objects.All of them received CT and MRI examination before operation. The results of the examinations weredetailedly recorded and analyzed. The results of postoperative pathological staging were taken as the gold standard to evaluate the differences in coincidence rates of CT and MRI staging. Results The results of surgical and pathological staging showed that among the 124 patients with prostaticcancer, there were 23 cases at stage A(18.5%), 28 cases at stage B(22.6%), 42 cases at stage C(33.9%) and 31 cases at stage D(25.0%). Taking the results of surgical and pathological staging as the gold standard, it indicated that there were 18 cases at stage A(78.3%), 21 cases at stage B(75.0%), 36 cases at stage C(85.7%) and 27 cases at stage D(87.1%) correctly diagnosed by MRI. There were 10 cases at stage A(43.5%), 13 cases at stage B(46.4%), 35 cases at stage C(83.3%) and 26 cases at stage D(83.9%)correctly diagnosed by CT. There was no statistical significance in the comparison of accuracy at stage C and D between the two methods(P＞0.05). At stage A and B, the diagnostic accuracy of MRI staging was significantly higher than that of CT and the difference was statistically significant (P＜0.05). Conclusion The staging accuracy of MRI examination in patients with prostaticcancer at stage A and B was higher than that of CT, which can be used in the preoperative staging evaluation of patients with prostatic cancer and provide basis for making treatment plan. It is worthy of promotion.