Intersite Reliability of Diffusion Tensor Imaging on Two 3T Scanners
Intersite Reliability of Diffusion Tensor Imaging on Two 3T Scanners
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DOI：
10.2463/mrms.2014-0077
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发表时间：
2015-01-01
影响因子：
3
通讯作者：
Aoki, Shigeki
中科院分区：
文献类型：
--
作者：
Kamagata, Koji;Shimoji, Keigo;Aoki, Shigeki
我们报告了在两个部位使用相同的3T扫描仪和采集协议的弥散张量成像(DTI)参数的站点间扫描可靠性。基于体素的分析显示，有几个区域存在显著的站点间差异。DTI测量的站点间可靠性在区域特异性分析(TSA)中的变异系数低于4%，在基于图谱的分析中的变异系数低于6%。鉴于TSA的良好可靠性，我们的结果表明它是一种有前途的、有用的多中心DTI研究工具。
We report the intersite scan reliability of diffusion tensor imaging (DTI) parameters using identical 3T scanners and acquisition protocols at 2 sites. Voxel-based analysis revealed several regions with significant intersite differences. The intersite reliability of DTI measures showed coefficients of variation below 4% in tract-specific analysis (TSA) and below 6% in atlas-based analysis. Given the excellent reliability of TSA, our results suggest it as a promising and useful tool for multicenter DTI studies.