Central sulcus patterns at MRI.

Radiologists can now use Talairach's bicommissural reference system and simple T-weighted sagittal magnetic resonance imaging (MRI) sections to recognize the central sulcus of the brain with its spatial features. In this study of 50 MRI examinations performed on normal subjects with contiguous 9 mm thick sagittal sections related to a standard proportional model that takes into account variations in the size and shape of the brain, the central sulcus could be identified on each section, despite its complexity on lateral projections and its frequent changes of course. By comparisons with the co-planar stereotaxic atlas of Talairach and Tournoux, it will be possible to localize the classical functional areas of the telencephalon.