Diffusion-tensor MR imaging at 1.5 and 3.0 T: Initial observations
Diffusion-tensor MR imaging at 1.5 and 3.0 T: Initial observations
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DOI：
10.1148/radiol.2212001823
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发表时间：
2001-11-01
期刊：
影响因子：
19.7
通讯作者：
Hedehus, M
中科院分区：
文献类型：
--
作者：
Hunsche, S;Moseley, ME;Hedehus, M
在1.5 t和3.0 t下比较弥散张量MR成像，在足够的信噪比下，我们发现分数各向异性没有差异。3.0 T时的信噪比提高40%，可以在不引入噪声相关误差的情况下获得更高的分辨率，但代价是3.0 T磁场不均匀性造成的几何畸变增加。
Diffusion-tensor MR imaging was compared at 1.5 and 3.0 T. With sufficient signal-to-noise ratio, we found no differences in fractional anisotropy. With a 40% higher signal-to-noise ratio at 3.0 T, higher resolution could be obtained without introduction of noise-related errors, albeit at the cost of increased geometric distortions caused by 3.0-T magnetic field inhomogeneities.