The biopsy in the skeletal muscle showed ragged red fiber and abnormal mitochondria.

骨骼肌活检病理检查可见破碎样红纤维及异常线粒体。

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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。

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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。

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