磁共振扩散加权成像对肝脏局灶病变的价值
磁共振成像;扩散加权成像;肝;肝肿瘤,卞读军,肖恩华,司徒卫军,袁术文,白末了,贺忠,杜万平,杨立平,胡冬煦,通讯作者:,Clinicalapplicationofdiffusion-weightedimagingfordetectingliverlesi
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卞读军, 肖恩华, 司徒卫军, 袁术文, 白末了, 贺忠, 杜万平, 杨立平, 中南大学湘雅二医院放射科, 湖南省长沙市 410011
胡冬煦, 中南大学湘雅二医院心胸外科 湖南省长沙市 410011
卞读军, 在读博士研究生, 主管技师, 主要从事医学影像技术研究.
国家自然科学基金项目, No. 30070235, 30470508
通讯作者: 肖恩华, 410011, 湖南省长沙市, 中南大学湘雅二医院放射科. cjr.xiaoenhua@vip.163.com
电话: 0731-8922242
收稿日期: 2007-05-09 修回日期: 2007-07-22
Clinical application of diffusion-weighted imaging for detecting liver lesions
Du-Jun Bian, Dong-Xu Hu, En-Hua Xiao, Wei-Jun Si-Tu, Shu-Wen Yuan, Mo-Liao Bai, Zhong He, Wan-Ping Du, Li-Ping Yang
Du-Jun Bian, En-Hua Xiao, Wei-Jun Si-Tu, Shu-Wen Yuan, Mo-Liao Bai, Zhong He, Wan-Ping Du, Li-Ping Yang, Department of Radiology, the Second Xiangya Hospital of Central South University, Changsha 410011, Hu’nan Province, China
Dong-Xu Hu, Department of Cardiothoracic Surgery, the Second Xiangya Hospital of Central South University, Changsha 410011, Hu’nan Province, China
Supported by: National Natural Science Foundation of China, No. 30070235, 30470508
Correspondence to: En-Hua Xiao, Department of Radiology, the Second Xiangya Hospital of Central South University, Changsha 410011, Hu’nan Province, China. cjr.xiaoenhua@vip.163.com
Received: 2007-05-09 Revised: 2007-07-22
Abstract
AIM: To investigate the clinical application of diffusion-weighted imaging (DWI) for detecting liver lesions.
METHODS: DWI and routine non-enhanced MRI were used in 91 persons who included 30 cases with primary hepatic carcinoma, 12 with hepatic hemangioma, 13 with hepatic cyst and 36 with normal liver; b values were set at 500 and 800 s/mm2, respectively. After identifying definitively diagnosable cases, mean apparent diffusion coefficient (mADC) and exponential apparent diffusion coefficient (eADC) images were acquired using MRI machine software. The four items—mADC, eADC, DI (diffusion index; the ratio of ADC values in lesion/liver), and the ratio of eADC values in lesion/liver—were measured ......
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