| 叶锦棠,王霄英,刘婧,蒋媛嫄,郭雪梅,李飞宇,蒋学祥.扩散加权成像对前列腺外周带炎症和肿瘤T2低信号的鉴别作用[J].中国医学影像技术,2011,27(3):581~585 |
| 扩散加权成像对前列腺外周带炎症和肿瘤T2低信号的鉴别作用 |
| DWI in differential diagnosis of low T2 signal in peripheral zone of prostatitis and prostatic carcinoma |
| 投稿时间：2010-10-15 修订日期：2010-11-20 |
| DOI： |
| 中文关键词: 前列腺炎 前列腺肿瘤 扩散磁共振成像 |
| 英文关键词:Prostatitis Prostatic neoplasms Diffusion magnetic resonance imaging |
| 基金项目:2007年度高等学校博士学科点专项科研基金新教师项目(20070001745、20070001748)。 |
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| 中文摘要: |
| 目的 通过磁共振DWI探讨前列腺炎和前列腺癌患者前列腺外周带T2低信号区ADC值的变化特点,定量评价DWI在鉴别前列腺外周带T2低信号区炎症和肿瘤中的价值。方法 收集103例MRI显示为前列腺外周带T2信号减低的初诊患者,根据超声引导下穿刺活检结果分为前列腺炎组(50例)和前列腺癌组(53例),测定T2低信号区的平均ADC值和最低ADC值;采用独立样本t检验对两组ADC值进行比较。结果 前列腺炎组平均ADC值为(1.33±0.20)×10－3 mm2/s,前列腺癌组平均ADC值为(0.86±0.12)×10－3 mm2/s,差异有统计学意义(t=14.70,P＜0.05)。前列腺炎组最低ADC值为(1.22±0.19)×10－3 mm2/s,前列腺癌组最低ADC值为(0.68±0.15)×10－3 mm2/s(t=16.45,P＜0.05)。结论 应用DWI定量评价和鉴别外周带T2低信号前列腺炎和前列腺癌是可行的。 |
| 英文摘要: |
| Objective To investigate the ADC value characteristics of low T2 signal area in peripheral zone of prostatitis and prostatic carcinoma patients, in order to evaluate the role of DWI in the differentiation of prostatitis and prostatic carcinoma. Methods According to the results of biopsy, 103 patients with hypointense T2 signal on MRI in prostatic peripheral zone were divided into two groups: Prostatitis group (n=50) and prostatic carcinoma group (n=53). Mean and lowest ADC values were measured in the ROI in hypointense T2 signal. The ADC values between the two groups were compared with independent t-test. Results The mean ADC value of low T2 signal area in prostatitis group was (1.33±0.20)×10－3 mm2/s, whereas that in prostatic carcinoma group was (0.86±0.12)×10－3 mm2/s (t=14.70, P＜0.05). The lowest ADC value of low T2 signal area in prostatitis group was (1.22±0.19)×10－3 mm2/s, whereas that in prostatic carcinoma group was (0.68±0.15)×10－3 mm2/s (t=16.45, P＜0.05). Conclusion DWI may be a feasible tool in the differential diagnosis of prostatitis and prostatic carcinoma. |
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