A Study on the Normal Position of Angiographic Sylvian Point: Part 2 : Geometrical Method of Measurement.
- Author:
Sun Ho CHEE
1
Author Information
1. Department of Neurological Surgery, Ewha Womans University School of Medicine, Seoul, Korea.
- Publication Type:Original Article
- From:Journal of Korean Neurosurgical Society
1977;6(2):287-292
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
A geometrical method for estimating the normal position of the angiographic sylvian point in the lateral angiographic projection is described. The position of the angiographic sylvian point is determined by the base and the height of a right-angled triangle formed by the line from the anterior clinoid process to the angiographic sylvian point and the perpendicular line from the angiographic sylvian point to the clino-occipital line. The 95% confidence limits for mean value of the base are 37.13+/-.05mm and of the height 43.95+/-.95mm.
