Prospective assessment of carotid bifurcation disease with spiral CT angiography in surface shaded display (SSD)-technique
✍ Scribed by Johann Link; Stefan Mueller-Huelsbeck; Joachim Brossmann; Malte Grabener; Ulrich Stock; Martin Heller
- Book ID
- 103927880
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 845 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0895-6111
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✦ Synopsis
Purpose:
To decide, whether spiral ct-angiography (cta) in surface display (ssd)-technique is suitable for accurate quantification of carotid artery stenoses.
Material and methods:
Forty-four patients (25 male, 19 females) with a total of 80 symptomatic carotid artery were studied prospectively with selective cerebral angiography and spiral cta in ssd-technique. the degree of stenosis was determined according to the nascet-study.
Results:
Assessment of the degree of stenoses with cta and angiography was the same in 36% of mild stenoses, in 64% of moderate stenoses, in 68% of severe stenoses, and in 95% of the occluded internal carotid arteries. overall, cta in ssd-technique showed equivalent results as selective cerebral angiography in 65% of all cases.
Conclusion:
Spiral cta in ssd-technique is inferior to selective cerebral angiography. calcified plaques, vessel opacification and thresholding influence the most grading of stenosis.