We found increased susceptibility in patients compared with HCs that primarily involved cerebellar structures . The result of 2D-flatmap visualization showed that the involved subregions of iron accumulation were in the right Crus Ⅱ and right lobule Ⅶb. Interestingly, no significant differences in QSM value of basal ganglia, thalamus, or motor cortex were observed between ICD patients and HCs. Moreover, there was no significant difference between groups regarding the GMV in the cerebellum. Of consistent findings with standard structural MRI technique highlights the potential of probing tissue iron across the cerebellum with QSM as a disease biomarker
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