Investigation of the morphology of cerebral arteries with multi-slice spiral CT angiography and its clinical significance

Objective To investigate the morphology of the cerebral arteries with multi-slice spiral CT angiography(MSCTA) in Chinese adults.Methods MSCTA of 129 Chinese adults were retrospectively analyzed to observe the morphology and patterns of the cerebral arteries.Results On MSCTA,the hypogenesis rate of A1 segment of anterior cerebral artery was 14.73%,and its absence rate 5.43%.The variations of the A1 segment of anterior cerebral artery in males were more than that in females(χ2=5.85,P0.05).The presence rate of anterior communicating artery was 66.67% and 49.61% in posterior communicating artery(in females more than in males(χ2=6.00,P0.05).The presence rate of the fetal type and the transitional configuration posterior cerebral artery was 9.30% and 6.20%,respectively.Conclusion MSCTA is accurate for evaluating the anatomy and variation of cerebral arteries.