Quantifying sulcal and gyral topography in relation to deep seated and ventricular lesions: cadaveric study for basing surgical approaches and review of literature.
OBJECTIVE
Numerical implication of sulcal and gyral topography for surgical approaches has not been studied.


METHODS
Percentage gain of distance using sulci as compared to that of gyri was calculated by measuring distances toward the ventricles in 15 hemispheres.


RESULTS
Superior frontal sulcus was closest proving greater than 50% gain in distance compared to superior frontal gyrus; inferior temporal sulcus provided greater gain in the temporal lobe.


CONCLUSIONS
Sulci provide upto 58% distance gain. For trans-gyral approaches, MFG and ITG were found closer to the respective ventricular area.
Department of Neurosurgery, Louisiana State University Health Sciences Center , Shreveport, LA , USA.
Raghuram
R
Sampath
Kristopher
K
Katira
Prasad
P
Vannemreddy
Anil
A
Nanda
D002102:Cadaver; D002540:Cerebral Cortex / Q000033:anatomy & histology / Q000473:pathology / Q000601:surgery; D002552:Cerebral Ventricles / Q000473:pathology / Q000601:surgery; D006801:Humans; D009493:Neurosurgery / Q000379:methods*
distance; gyri; percentage gain in distance; sulci; ventricle