Probabilistic tractography in the ventrolateral thalamic nucleus: cerebellar and pallidal connections

In this study we performed a (a) qualitative and (b) quantitative examination of VL-cerebellar and VL-pallidal pathways and compared the probability distributions between both projection fields in the VL after an (I) atlas-based and (II) manual-based segmentation procedure. Both procedures led to high congruent results of cerebellar and pallidal connectivity distributions: the maximum of pallidal projections was located in anterior and medial parts of the VL nucleus, wher eas cerebellar connectivity was more located in lateral and posterior parts. The median connectivity for cerebellar connections in both approaches (manual and atlas-based segmentation) wasVLa >  VLpv >  VLpd, whereas the pallidal median connectivity wasVLa ~ VLpv >  VLpd in the atlas-based approach andVLpv >  VLa >  VLpd in the manual approach.

Source: Anatomy and Embryology - May 2, 2020 Category: Anatomy Source Type: research