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Fig. 1 | Cerebellum & Ataxias

Fig. 1

From: Stratification of disease progression in a broad spectrum of degenerative cerebellar ataxias with a clustering method using MRI-based atrophy rates of brain structures

Fig. 1

Segmentation of the corpus callosum and the cerebellum on MR images. The corpus callosum on a midsagittal T1-weighted image was extracted with the automated segmentation tool (a). The total area of the corpus callosum (mm2) was divided by the individual cranial AP diameter to correct for the individual head size differences as an area index (Adx). The cerebellum was defined as the area lateral to the line connecting the anterior lobe of the cerebellum (I segment) and cerebellar flocculus (X segment) (b). On the central slice, the fourth ventricle and surrounding cerebellar tissue were selected, and the cerebellum was automatically extracted using the imaging analyzer (c)

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Cerebellum & Ataxias

ISSN: 2053-8871