title: Determination of intracerebral structures using osseous reference points for computer-aided stereotactic operations.
abstract: Computer-aided sterotactic neurosurgery can be improved and simplified by using craniocerebral parameters for the calculation of subcortical target points and avoiding an air-filling of the ventricles. This was achieved by selecting 403 pneumo-encephalographic studies at random, measuring the craniocerebral parameters according to age and sex. There is a correlation between the bony cranium and the brain axis. We established a formula and a table to determine in the plain X-ray the entrance of the foramen of Monroi with a standard deviation of +/- 1.5 mm and the inclination of the intracerebral basic line we used (foramen Monroi-commissura posterior). With this information various subcortical targets can be determined by means of computer programs.
mesh_terms: D000368:Aged; D001921:Brain / Q000601:surgery*; D002552:Cerebral Ventricles / Q000033:anatomy & histology*; D014695:Cerebral Ventriculography; D003201:Computers; D005260:Female; D006801:Humans; D006948:Hyperkinesis / Q000601:surgery; D008297:Male; D008433:Mathematics; D008875:Middle Aged; D009493:Neurosurgery / Q000379:methods*; D010302:Parkinson Disease, Secondary / Q000601:surgery; D011011:Pneumoencephalography / Q000009:adverse effects; D012886:Skull / Q000033:anatomy & histology; D013238:Stereotaxic Techniques