高场强磁共振成像在前列腺癌诊断中的应用

摘要

Objective To discuss the diagnostic accuracy and clinical value of high field magnetic resonance imaging(MRI) on the prostatic carcinoma. Methods The MRI data of 68 cases suspected prostatic carcinoma were studied with T1WI,T2WI and diffusion weighted imaging(DWI), dynamic contrast enhanced magnetic resonance imaging(DCE MRI) ,array spatial sensitivity encoding technique( ASSKT). Results 57 of 68 patients were diagnosed as prostatic carcinoma using high field MRI,in which there were 46 patients with prostatic carcinoma proved by operation and pathology,46 patients with true-positive; 11 patients with false-positive; 8 patients with true-negative;3 patients with false-negative. The diagnostic accuracy rate of the prostatic carcinoma with high field MRI was 79. 4% ,the sensitivity rate was 83.1% ,the specificity rate was 72. 1%. Conclusion High field MRI has important value in diagnosis of the prostatic carcinoma.%目的 探讨高场强磁共振成像(MRI)对前列腺癌(PCa)诊断的准确性和临床意义.方法 回顾性分析临床疑似前列腺癌的患者68例,均行高场强磁共振T1加权成像(T1WI)、T2加权成像(T2WI)及扩散加权成像(DWI)、动态增强磁共振成像(DCE MRI)、阵列空间敏感编码技术(ASSET).结果 在68例临床疑似前列腺癌患者中,经高场强MRI检查提示前列腺癌57例,经病理证实46例,即真阳性46例;假阳性11例;真阴性8例;假阴性3例.前列腺癌的高场强MRI诊断准确性为79.4%,敏感性83.1%,特异性72.1%.结论 高场强MRI对前列腺癌的诊断具有重要价值.