Abstract:
PURPOSE:To evaluate the role of computed tomography angiography (CTA) and magnetic resonance angiography (MRA) in the quantification of atherosclerotic stenosis of carotid artery bifurcation in comparison with digital substraction angiography (DSA) and Doppler sonography (DS). MATERIALS AND METHODS:Twenty-five patients with atherosclerotic disease of the carotid arteries with proven stenosis by DSA, had spiral CTA, MRA using two- and three-dimensional time-of-flight gradient echo techniques, and DS using Doppler flow signal recording (total 47 carotid artery bifurcations). The degree of stenosis was measured according to the North American Symptomatic Carotid Endarterectomy Trial criteria: total occlusion (100%), severe (70-99%), moderate (30-69%) and mild (0-29%). The degree of stenosis measured by CTA, MRA and DS was compared to DSA, used as the gold standard. RESULTS:Ninety-seven percent of MRA measures were equivalent to DSA, and 3% were underestimated; 96% of CTA measures were equivalent to DSA, and 4% were underestimated; 77% of DS measures were equivalent to DSA, 21% were overestimated and 2% were underestimated. CONCLUSIONS:CTA and MRA are equally accurate methods in quantifying the degree of carotid bifurcation stenosis.
journal_name
Eur Neuroljournal_title
European neurologyauthors
Binaghi S,Maeder P,Uské A,Meuwly JY,Devuyst G,Meuli RAdoi
10.1159/000050752keywords:
subject
Has Abstractpub_date
2001-01-01 00:00:00pages
25-34issue
1eissn
0014-3022issn
1421-9913pii
50752journal_volume
46pub_type
临床试验,杂志文章abstract::31 children aged between 6 weeks and 15 years, who had suffered a stroke, were investigated by computer tomography (CT). 8 patients had suffered transient ischemic attacks (TIA), 17 had completed ischemic strokes and 6 had hemorrhagic strokes. The mean interval between the stroke and the first CT investigation was 5 d...
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pub_type: 临床试验,杂志文章,随机对照试验
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