MRI动态增强及脂肪抑制技术对早期前列腺癌的诊断价值

目的:探讨MRI动态增强及脂肪抑制技术对早期前列腺癌的诊断价值。方法:对经病理证实的早期前列腺癌32例病人行常规平扫和脂肪抑制及动态增强扫描,观察病灶的信号变化并绘制时间/信号强度曲线。结果:MRI动态增强及脂肪抑制技术对早期前列腺癌的诊断准确率明显高于平扫T2WI及平扫T2WI脂肪抑制像。结论:MRI动态增强及脂肪抑制技术动态增强MRI使前列腺癌与周围组织的信号差别增大,进一步提高了早期前列腺癌的诊断准确率;时间/信号强度曲线在诊断早期前列腺癌方面亦有一定价值。

Evaluation of MR Imaging with Dynamic Gadolinium Enhancement and Fat Suppression in the Diagnosis of Early Prostatic Cancer

Objective To evaluate the value of MR imaging with dynamic Gadolinium enhancement and fat suppression in diagnosing of early prostatic cancer. Methods 32 cases of early prostatic cancer were proved by pathologic perform conventional plain scan,dynamic enhancement and fat suppression,to observe alter ation of signal intense of prostate in dynamic MRI,and to draw the time-signalintensity curve of early prostatic cancer. Results the accuracy of MR imaging with dynamic Gadolinium enhancement and fat suppression in the diagnosis of early prostatic cancer was superior to that of MR imaging with either plain Ta weighted or plain Ta weighted with fat suppression. Conclusion MR imaging with dynamic Gadolinium enhancement and fat suppression make the difference between carcinoma and other tissue obvious and make that observation is more clear,it can further improve accuracy of diagnosis to early prostatic cancer. The time-signalintensity curve was also useful for diagnosis of early prostatic cancer.