Abstract
Aim: To measure the bony carotid canal diameters in people without any cerebral vascular variations or aneurysms that would affect the bony carotid canal and to determine whether the variations of bony carotid canal width could be an indicator of cerebral vascular aneurysyms and variations.
 Material and Methods: Seven-hundred neck-brain CT angiographies were assessed retrospectively. Of the patients, 283 (40.4%) were women and 417 (59.6%) were men. Bilateral bony carotid canal diameter was measured. Cerebral vascular variations and aneurysms were recorded.
 Results: Normal canal diameter on the right, in all patients was 5.631±0.502mm, in males 5.797±0.475mm and 5.388±0.441mm in females; on the left side, 5.666±0.512mm overall, 5.825±0.492mm in males and 5.432±04.49mm in females (p=0.039,
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