磁共振成像对前列腺病变诊断价值  

The Diagnostic Value of MR Imaging in Prostate Lesions

作　　者：刘勇[1] 宋震宇[1] 黄冰峰[1] 罗松涛[2] 

机构地区：[1]泸州医学院附属中医院磁共振室,四川省泸州市646000 [2]泸州医学院附属中医院泌尿科,四川省泸州市646000

出　　处：《现代医用影像学》2012年第5期275-277,共3页Modern Medical Imageology

摘　　要：目的:探讨磁共振T2加权像(T2WI)、扩散加权像(DWI)、波谱技术(MRS)三种成像方法对前列腺病变的诊断价值。材料与方法:搜集经穿刺及手术病理证实的良性前列腺增生(BPH)24例、前列腺癌(PCa)20例的MRI资料,分析T2WI、DWI、MRS表现特点。结果:BPH组:前列腺中央叶增大,13例伴增生结节。中央叶信号较均匀6例、T2WI呈等/稍高信号,中央叶信号不均匀18例、T2WI见斑点状/结节状高信号。DWI中央叶为较均匀稍高信号。中央叶或结节灶MRS:Cit峰显著升高,Cho峰降低。PCa组:T2WI前列腺周围叶内见低信号结节,DWI结节为高亮信号。结节灶MRS:Cho峰显著升高,Cit峰下降或消失。结论:T2WI、DWI、MRS均有一定的特征性,三种成像方法联合应用,对BPH、PCa诊断价值更大。Purpose：To investigate the value of MR T2-weighted image（T2WI）,diffusion weighted image（DWI）,spectroscopy（MRS） three kind of methods in diagnostic prostate disease.Materials and Methods：Benign prostatic hyperplasia（BPH）24 cases,prostatic cancer（PCa）20cases were proved by pathology,the MRI T2WI,DWI,MRS were analyzed retrospectively.Results：BPH Group：The central lobe of prostate increased,13 cases with nodules.Central lobe even isointensity/hyperintensity in T2WI（6 cases）;uneven patchy/nodules hyperintensity in T2WI（18 cases）.Central lobe signal even slightly hyperintensity in DWI.Centrals or nodules MRS：Cit wave significantly higher,Cho wave lower.PCa Group：hypointensity nodule in T2WI,hyperintensity in DWI.Lesion MRS：Cho wave significantly higher,Cit wave lower or lose.Conclusion：T2WI,DWI,MRS has a certain characteristic,combine three methods can improve diagnostic value of BPH and PCa.

关 键 词：良性前列腺增生 前列腺癌 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R697.3[医药卫生—诊断学]