0.5T MR动态增强技术鉴别良性前列腺增生症与前列腺癌的研究

• 作 者: 倪新初 沈钧康 陆之安 钱农 潘昌杰 荣伟良 项剑波 陈建国 龚建平 钱铭辉
• 机 构: 南京医科大学附属常州二院影像科,苏州大学附属第二医院影像科,苏州大学附属第二医院影像科,南京医科大学附属常州二院影像科,南京医科大学附属常州二院影像科,南京医科大学附属常州二院影像科,南京医科大学附属
• 出 处: 中国医学影像技术
• 发表日期: 2004年08期
• 关键词: 前列腺增生 前列腺癌 磁共振成像 动态对比增强

目的　探讨 0 .5T条件下MRI动态增强扫描对良性前列腺增生 (BPH)与前列腺癌的诊断与鉴别诊断价值。方法　对BPH 40例 ,前列腺癌 3 2例患者常规行MRI平扫和动态增强扫描 ,观察病灶动态增强特征并绘制时间信号强度曲线 (SI Time曲线 )。结果　前列腺癌MRI动态增强的开始时间、最大信号强度及早期强化率与BPH不同 (P分别 <0 .0 1、0 .0 5、0 .0 1)。SI Time曲线Ⅰ型多见于BPH ,Ⅱ型既可见于前列腺癌又可见于BPH ,前列腺癌以Ⅲ型为主 (P <0 .0 0 1)。结论　 0 .5T条件下MRI动态增强早期强化参数及SI Time曲线类型有助于BPH与前列腺癌的诊断与鉴别诊断。

Objective To investigate the diagnostic and differential diagnosis of benign prostatic hyperplasia (BPH) and prostate cancer with dynamic enhanced MRI under 0.5T condition. Methods Forty BPH patients and thirty two prostate cancer patients underwent routine MRI scan and dynamic contrast-enhanced scan. The dynamic enhancement characteristics of the lesions were observed and the time-signal intensity curve (SI Time curve) was drawn. Results The onset time, the maximum signal intensity and the rate of early enhancement of MRI dynamic enhancement of prostate cancer were different from those of BPH (P <0.010,0.0,0.01 respectively). SI Time curve type Ⅰ more common in BPH, Ⅱ can be found in both prostate cancer and BPH, prostate cancer type Ⅲ (P <0.01). Conclusions The MRI dynamic enhancement of early enhancement parameters and SI Time curve under 0.5T condition is helpful for the diagnosis and differential diagnosis of BPH and prostate cancer.