PMID: 8957797Nov 1, 1996Paper

Spiral CT angiography: study of stenoses and calcification at the origin of the vertebral artery

Neuroradiology
M T FarrésJ Lammer

Abstract

The origin of the vertebral artery may be difficult to show on sonography or conventional angiography. Our aim was to evaluate the accuracy of CT angiography (CTA) in detecting arteriosclerotic changes in the first segment (V1) of the vertebral artery. We performed CTA and intra-arterial digital subtraction angiography (DSA) on 24 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. The ostium of the artery was seen in all cases on CTA and in 33 of 47 cases with DSA. All ostial stenoses diagnosed on DSA were seen with CTA. CTA revealed 4 stenoses in cases in which angiography proved inadequate, 11 zones of calcification and 5 cases of luminal reduction due to calcified plaques undetected on DSA. In the V1 segment DSA and CTA showed 3 stenoses, 9 cases of kinking, 1 of coiling and 4 stenoses due to kinking. CTA also demonstrated 4 additional stenoses, 2 cases of kinking and 3 stenoses due to kinking.

Citations

Jun 2, 2009·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·R BarkerD Saunders
Mar 2, 1999·Journal of Computer Assisted Tomography·M FiebichK R Hoffmann
Feb 9, 2007·Journal of Neurology, Neurosurgery, and Psychiatry·S KhanH S Markus
Jan 7, 2014·Journal of Neuroradiology. Journal De Neuroradiologie·Ondřej SkodaMartin Svárovský
Jan 19, 2012·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·Sathish Kumar Dundamadappa, Keith Cauley
Jul 31, 2004·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Judith U HarrerChristof Klötzsch

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