Acta Academiae Medicinae Sinica

Acta Academiae Medicinae Sinica

Acta Academiae Medicinae Sinica ›› 2010, Vol. 32 ›› Issue (6): 634-639.doi: 10.3881/j.issn.1000-503X.2010.06.009

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Analysis of Carotid Artery of Patients with Acute Ischemic Stroke by Dual-source Computed Tomographic Angiography

HE Bo1, WANG Yuan-ling1, LI Shu-qing1, WU Li1, JIANG Jie1, WU Yan1, HAN Dan1   

  1. 1CT Center, the First Affiliated Hospital, Kunming Medical College, Kunming 650032, China2Department of Pathophysiology, Kunming Medical College, Kunming 650031, China
  • Received:2010-10-29 Online:2010-12-20 Published:2010-12-20
  • Contact: HAN Dan

Abstract: ObjectiveTo investigate the changes on carotid artery of patients with acute ischemic stroke by dual source computed tomographic angiography (DS-CTA) . MethodsFrom March 2009 to August 2010, 71 patients with acute ischemic stroke (IS group) underwent magnetic resonance imaging, which showed high signals on diffusion-weighted images. The location of atherosclerotic plaques in carotid artery, the nature of plaques, and the grade of stenosis were analyzed by DS-CTA, and the results were further compared with 45 patients with non-ischemic stroke (control group) . ResultsIn the IS group, 196 atherosclerotic plaques in the carotid artery were detected in 51 patients; the commonest locations included carotid artery bifurcation (52.0%) and trunk (20.4%) . Most plaques were combined plaques [52.0% (102/196) ] and soft plaques [27.0% (53/196) ] . Moderate and severe stenosis accounted for 86.3% in these 54 patients. The positive rate, nature, and location of plaques and the stenosis degree of artery were significantly different between IS group and control group (allP<0.05) . ConclusionThe commonest plaques in the carotid artery of patients with acute ischemic stroke are combined plaques and soft plaques, which often cause moderate and severe stenosis.

Key words: ischemic stroke, atherosclerosis, carotid artery, X-ray computed, tomography, angiography

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