| DWI诊断小儿幕下脑肿瘤 |
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| 引用本文： | 彭雪华,何玲,黄开平,蔡金华,刘波. DWI诊断小儿幕下脑肿瘤[J]. 中国医学影像技术, 2011, 27(2): 269-272 |
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| 作者姓名： | 彭雪华 何玲 黄开平 蔡金华 刘波 |
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| 作者单位： | 重庆医科大学附属儿童医院放射科,重庆,400014 |
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| 摘 要： | 目的 评价扩散加权成像(DWI)和表观扩散系数(ADC)值诊断及鉴别诊断小儿幕下脑肿瘤的价值。方法 58例经病理证实的幕下脑肿瘤患儿均接受常规MR平扫、增强和DWI扫描,并测量实质病变的ADC值。结果 髓母细胞瘤25例,ADC均值(6.73±1.55)×10-4 mm2/s;星形细胞瘤(Ⅰ~Ⅱ级)24例,ADC均值(14.80±2.61)×10-4 mm2/s;室管膜瘤8例,ADC均值(11.08±1.60)×10-4 mm2/s;少突胶质瘤1例,ADC均值(15.10±2.73)×10-4 mm2/s。对前三种肿瘤实质部分ADC值进行方差分析(F检验)和t检验,其ADC值差异有统计学意义(P<0.01)。结论 DWI及ADC值可评估小儿幕下脑肿瘤实质病变,是术前诊断及鉴别诊断后颅窝肿瘤的简单可靠的检查方法,对鉴别诊断髓母细胞瘤与星形细胞瘤有明显优势。
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| 关 键 词： | 儿童 脑肿瘤 扩散磁共振成像 表观扩散系数 |
| 收稿时间： | 2010-09-10 |
| 修稿时间： | 2010-11-07 |
Diffusion weighted imaging in diagnosis of infratentorial brain tumors in children |
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| PENG Xue-hu,HE Ling,HUANG Kai-ping,CAI Jin-hua and LIU Bo. Diffusion weighted imaging in diagnosis of infratentorial brain tumors in children[J]. Chinese Journal of Medical Imaging Technology, 2011, 27(2): 269-272 |
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| Authors: | PENG Xue-hu HE Ling HUANG Kai-ping CAI Jin-hua LIU Bo |
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| Affiliation: | Department of Radiology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China;Department of Radiology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China;Department of Radiology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China;Department of Radiology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China;Department of Radiology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China |
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| Abstract: | |
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| Keywords: | Child Brain neoplasms Diffusion magnetic resonance imaging Apparent diffusion coefficient |
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