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T2WI低信号的前列腺外周带病变的MR诊断研究
引用本文:何海青,樊树峰,陈邦文,杨爱春,李丽红.T2WI低信号的前列腺外周带病变的MR诊断研究[J].医学影像学杂志,2011,21(10):1533-1537.
作者姓名:何海青  樊树峰  陈邦文  杨爱春  李丽红
作者单位:浙江省台州医院放射科 浙江 临海317000
摘    要:目的:探讨磁共振T2加权相(T2WI)表现为低信号的前列腺外周带病变的诊断研究。方法:对83例前列腺外周带病变,其中前列腺炎症25例、前列腺腺癌45例、前列腺增生10例、纤维化病灶3例,进行T1WI、T2WI、DWI扫描,其中55例进行了增强扫描,分析前列腺外周带病变的信号表现。所有病例均经手术或穿刺活检病理证实。同时分析83例患者的PSA值。结果:前列腺外周带炎症T2WI的低信号影大部呈斑片状,无占位效应,增强后时间-信号曲线呈平台型,DWI呈稍高信号,ADC值稍减低,血PSA值处于正常值上限附近;前列腺外周带癌灶T2WI的低信号影以结节状为主,增强后时间-信号曲线呈速升速降型,DWI呈明显高信号影,ADC值明显降低,血PSA值明显增高;前列腺外周带良性前列腺增生T2WI的低信号呈斑片状或结节状,增强后早期无明显强化,后期不均匀强化,DWI呈稍高或高信号,ADC值稍低,介于腺癌与炎症之间,常可见中央带增生表现,血PSA值稍高;前列腺外周带纤维化病灶T2WI的低信号呈斑条状,界清,DWI呈低信号,增强后无强化,血PSA值正常。结论:前列腺外周带的炎症、腺癌、增生、纤维化病灶T2WI均可表现为低信号,增强扫描及DWI检查,ADC值测量,并结合PSA值,有较大诊断价值。

关 键 词:前列腺  磁共振成像  前列腺特异性抗原

MR diagnosis of peripheral zone of prostatic diseases with low intensity in T2WI
HE Hai-Qing,FAN Shu-feng,CHEN Bang-wen,YANG Ai-chun,LI Li-hong.MR diagnosis of peripheral zone of prostatic diseases with low intensity in T2WI[J].Journal of Medical Imaging,2011,21(10):1533-1537.
Authors:HE Hai-Qing  FAN Shu-feng  CHEN Bang-wen  YANG Ai-chun  LI Li-hong
Institution:HE Hai-Qing,FAN Shu-feng,CHEN Bang-wen,YANG Ai-chun,LI Li-hong Department of Radiology,Taizhou Hospital,Lin Hai,Zhejiang Province 317000,P.R.China
Abstract:Objective:This study was to evaluate the the diagnosis of peripheral zone of prostatic disease with low intensity in T2WI.Methods:Analyzed of 83 cases of peripheral zone of prostatic disease,include 25 prostatitis,45 PCa,10 BPH,and 3 fibrotic lesions.They were all scanned with T1WI,T2WI,DWI,and 55 cases were enhanced scanned.Their intensity characteristics were analyzed respectively.All the cases have histological diagnosis.Results:Peripheral zone of prostatic disease appearance: The low intensity in T2WI o...
Keywords:Prostate gland  Magnetic resonance imaging  Prostate specific antigen  
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