Analysis of the Volumes of the Posterior Cranial Fossa, Cerebellum, and Herniated Tonsils Using the Stereological Methods in Patients with Chiari Type I Malformation
Figure 1
Brain MR midsagittal T2 demonstrating the posterior cranial fossa boundaries (a), the measurement of herniated tonsils from sagittal images with A: basion, B: opisthion, and C: degree of tonsillar herniation measured as the length perpendicular from C to AB (b).