| 何光武,孟宪科,沈天真,陈星荣.应用弥散张量磁共振成像定量分析正常成人大脑白质纤维各向异性特征[J].中国医学影像技术,2005,21(4):534~536 |
| 应用弥散张量磁共振成像定量分析正常成人大脑白质纤维各向异性特征 |
| Quantitative analysis anisotropy of normal adult cerebral white matter fiber by using diffusion-tensor MR imaging |
| 投稿时间：2005-01-20 修订日期：2005-02-26 |
| DOI： |
| 中文关键词: 大脑白质纤维 各向异性 磁共振成像,扩散 成人 |
| 英文关键词:Cerebral white matter fiber Anisotropy Magnetic resonance imaging, diffusion Adult |
| 基金项目: |
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| 中文摘要: |
| 目的 定量分析正常成人大脑不同部位白质纤维各向异性所存在的差异。方法 测量52名正常志愿者大脑白质纤维不同部位的FA值和ADC值,测量的部位有:外囊、内囊前肢、内囊后肢、胼胝体膝部和胼胝体压部。结果 FA值以胼胝体压部为最高是0.893±0.0645。统计分析大脑白质各部位间FA值的差别均有统计学意义(P＜0.01)。结论 FA值可定量分析大脑不同部位的白质纤维的各向异性程度。 |
| 英文摘要: |
| Objective To quantitatively analyze the difference of anisotropy of the different cerebral white matter fiber. Methods A total of 52 healthy adult volunteers were studied using MR diffusion tensor imaging. The FA values and ADC values were measured. The ROIs were placed in external capsule, anterior limb of the internal capsule, posterior limb of the internal capsule, genu of corpus callosum, splenium of corpus callosum. Results The FA value of the splenium of the corpus callosum was the highest(0.893±0.0645). There was statistical difference of FA value between the ROIs of this study(P＜0.01).Conclusion FA value can be used to quantitatively analyze the anisotropy of different cerebral white matter fiber. |
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