Guided by a review of the anatomical literature, 36 sulci on the
human cerebral cortical surface were
designated as homologous. These sulci were assessed for visibility on 3-dimensional
images reconstructed
from magnetic resonance imaging scans of the brains of 20 normal volunteers
by 2 independent observers.
Those sulci that were found to be reproducibly identifiable were used to
define 24 landmarks around the
cortical surface. The interobserver and intraobserver variabilities of
measurement of the 24 landmarks were
calculated. These reliably reproducible landmarks can be used for detailed
morphometric analysis, and may
prove helpful in the analysis of suspected cerebral cortical structured
abnormalities in patients with such
conditions as epilepsy.
