Fig. 1From: Radiological anatomy of foramen rotundum and its surgical implicationsFirst measurements. A Right distance between right FR to midline, B horizontal distance between FR and VC, C distance between FR and ON, D direct distance between FRs, E vertical distance between FR and VC, F direct distance between FR and VC, G direct distance between FR and VC, G rotundum angle, H FR diameterBack to article page