前列腺中央腺体偶发癌的MRI初步研究  

MR imaging of incidentally detected prostate carcinoma in the central gland of prostate:preliminary study

作　　者：张学琴[1,2] 王霄英[1] 陆健 缪小芬[2] 郭雪梅[1] 李飞宇[1] 刘婧[1] 蒋学祥[1] 

机构地区：[1]北京大学第一医院医学影像科,100034 [2]江苏省南通市第三人民医院影像科,226001

出　　处：《磁共振成像》2010年第4期264-267,共4页Chinese Journal of Magnetic Resonance Imaging

基　　金：首都医学发展科研基金(2007-62);教育部博士点基金新教师项目(20070001745)资助

摘　　要：目的探讨前列腺中央腺体偶发癌的常规MRI表现、MR波谱(MRS)代谢特征及其在扩散加权成像(DWI)上的表现。方法对9例行尿道前列腺切除术(TURP)的前列腺中央腺体偶发癌患者做回顾性分析,观察其常规MR表现及其在MRS和DWI上的表现,测量中央腺体的(胆碱+肌酸)/枸橼酸盐[(Cho+Cre)/Cit,CC/C]比值、中央腺体表观扩散系数(apparent diffusion coefficient,ADC)值及最小ADC值。结果前列腺中央腺体偶发癌的CC/C值平均为1.04±0.28,范围为0.65～1.45;中央腺体ADC值平均为(1.48±0.18)×10-3mm2/s,范围为(1.16～1.67)×10-3mm2/s;最小ADC值平均为(1.15±0.10)×10-3mm2/s,范围为(0.99～1.25)×10-3mm2/s。结论 MRS和DWI对于前列腺中央腺体偶发癌的诊断具有一定的局限性。-Objective：To evaluate the conventional MR imaging,MR spectroscopy （MRS） and diffusion-weighted imaging （DWI） of incidentally detected prostate carcinoma in the central gland of prostate.Materials and Methods：The clinical and imaging data of 9 patients with incidentally detected prostate carcinoma （IDPC） who underwent transurethral resection of the prostate were analyzed retrospectively.The manifestation of conventional MRI,MRS and DWI were observed,the corresponding value of （Cho＋Cre）/Cit（CC/C）,the ADC value of the central gland and the minimal ADC value were calculated.Results：The mean CC/C value of IDPC was 1.04±0.28,and the range of it was 0.65-1.45.The mean and the range of the ADC value of the central gland were （1.48±0.18）×10-3 mm2/s and （1.16-1.67）×10-3 mm2/s.The mean and the range of the minimal ADC value were （1.15±0.10）×10-3 mm2/s and （0.99-1.25）×10-3 mm2/s.Conclusion：MRS and DWI have some limitations in the diagnosis of the incidentally detected prostate carcinoma in the central gland of prostate.

关 键 词：前列腺偶发癌 磁共振成像 磁共振波谱学 扩散加权成像 

分 类 号：R737.25[医药卫生—肿瘤] R445.2[医药卫生—临床医学]