有研究显示扩散不等向性 (diffusion anisotropy)是存在脊髓的白质里,如果DWI的 磁场垂直于脊髓,则平均所测到的ADC值介于0.40至0.57 × 10-3mm2/s,如果磁场平行脊髓,ADC值显著升高...
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diffusion anisotropy index 选择弥散各向异性指标
multi-fiber diffusion anisotropy 多纤维扩散各向异性
anisotropy diffusion dla cluster 各向异性dla集团
Conclusion Abnormal crossing of multi-fiber within a voxel is one of reasons to cause diffusion anisotropy change. Abnormal crossing of multi-fiber may not affect the FA value.
结论多纤维分叉异常是导致部分各向异性降低的原因之一，但多纤维分叉现象并不一定影响部分各向异性FA值。
The appearance diffusion coefficient and the fractional anisotropy were measured for the splenium of the corpus callosum, the genu of the corpus callosum, and the hippocampus.
测量胼胝体膝部、胼胝体压部和海马的表观扩散系数和各向异性分数。
Average diffusion coefficient (ADC) value, fractional anisotropy (FA) value and maps were calculated in the central portion and peripheral edema of the lesions.
构建表观扩散系数(adc)图和各向异性分数(fa)图，并测量病灶中心及周围水肿区的ADC、fa值。
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