The Control Study about Multi-slice CT Angiography of Vertebral Artery Initiation and DSA
Qiang Xie
Abstract
Qiang Xie
Abstract
Object Our aim was to evaluate the accuracy of CT angiography (CTA) in detecting arteriosclerotic changes in the first segment (V1) of the vertebral artery. Methods We performed CTA and intra-arterial digital subtraction angiography (DSA) on 13 patients with vertebrobasilar insufficiency. The ostium and the V1 segment were examined. Stenosis was assessed on a three-grade scale, and calcification and the degree of kinking were recorded. DSA and CTA results were compared. Results The ostium of the artery was seen in all cases on CTA and in 21 of 26 cases with DSA. All ostial stenoses diagnosed on DSA were seen with CTA. CTA revealed 3 stenoses in cases in which angiography proved inadequate. Conclusion The ostium and origin of the vertebral artery is better demonstrated by CTA than by DSA.
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Object Our aim was to evaluate the accuracy of CT angiography (CTA) in detecting arteriosclerotic changes in the first segment (V1) of the vertebral artery. Methods We performed CTA and intra-arterial digital subtraction angiography (DSA) on 13 patients with vertebrobasilar insufficiency. The ostium and the V1 segment were examined. Stenosis was assessed on a three-grade scale, and calcification and the degree of kinking were recorded. DSA and CTA results were compared. Results The ostium of the artery was seen in all cases on CTA and in 21 of 26 cases with DSA. All ostial stenoses diagnosed on DSA were seen with CTA. CTA revealed 3 stenoses in cases in which angiography proved inadequate. Conclusion The ostium and origin of the vertebral artery is better demonstrated by CTA than by DSA.
Key concepts: Medicine, Ostium, Vertebral artery, Radiology, Angiography, Digital subtraction angiography, Stenosis, Vertebrobasilar insufficiency