| MR动态增强和扩散加权成像对前列腺良恶性病变的评价 |
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| 引用本文： | 陈自谦,吴道清,倪萍.MR动态增强和扩散加权成像对前列腺良恶性病变的评价[J].医疗设备信息,2011(1):140-143,146. |
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| 作者姓名： | 陈自谦 吴道清 倪萍 |
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| 作者单位： | 南京军区福州总医院医学影像中心;南京军区福州总医院医学工程科; |
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| 摘 要： | 目的探讨MR动态增强（DEC-MRI）及扩散加权成像（DWI）在前列腺良恶性病变诊断中的价值。方法对83例经病理证实的前列腺疾病患者行MRI常规平扫、DWI及MR动态增强检查,同时将55例正常志愿者作为对照组,分析正常组、前列腺增生组（BPH）以及前列腺癌肿组（Pca）的前列腺的外周带和中央叶的DEC-MRI信号变化、SI-T曲线特征及DWI-ADC值的变化特点。结果 MR动态增强和DWI对前列腺良恶性疾病的检出具有较高的敏感性和特异性。SI-T曲线的达峰时间（Tmax）从高到低依次为正常前列腺外周带、正常中央叶、BPH及Pca（P=0.000）;强化程度（SI%）从高到低为BPH、正常中央叶、Pca及正常外周带（P=0.000）;强化率（R）从高到低为Pca、BPH、正常中央叶及正常外周带（P=0.000）。ADC值从高到低为正常外周带、正常中央叶、BPH及Pca（P=0.000）。结论 MR动态增强及DWI可明显提高对前列腺良恶性疾病的诊断和鉴别诊断率。
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| 关 键 词： | MR 动态增强 DWI 前列腺癌 前列腺增生 |
MRI Dynamic Contrast-enhancement and Diffusion-weighted Imaging for Evaluation of Benign and Malignant Diseases of Prostates |
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| CHEN Zi-qiana,WU Dao-qinga,NI Pingb a.Medical Imaging Center,b.Medical Engineering.MRI Dynamic Contrast-enhancement and Diffusion-weighted Imaging for Evaluation of Benign and Malignant Diseases of Prostates[J].Information of Medical Equipment,2011(1):140-143,146. |
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| Authors: | CHEN Zi-qiana WU Dao-qinga NI Pingb aMedical Imaging Center bMedical Engineering |
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| Institution: | CHEN Zi-qiana,WU Dao-qinga,NI Pingb a.Medical Imaging Center,b.Medical Engineering Department,Fuzhou General Hospital of Nanjing Command of Chinese PLA,Fuzhou Fujian 350025,China |
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| Abstract: | Objective To evaluate the value of MRI dynamic contrast-enhancement (DCEMRI) and diffusion-weighted imaging(DWI) in diagnosis of benign and malignant diseases of prostates.Methods 39 benign prostatic hyperplasia (BPH),44 prostatic carcinoma (PCa) and 55 healthy volunteers proved by pathology were scanned with conventional MR imaging,MR dynamic enhancement and DWI.The alteration of DCE-MRI signal intensity,the characteristics of signal intensity-time curve (SI-T curve) and the ADCs were analyzed.Results DCE-... |
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| Keywords: | MRI dynamic enhancement DWI prostatic carcinoma prostatic hyperplasia |
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