Application of dual-source CT in carotid arterial angiography / 医学研究生学报

ABSTRACT

Objective: To evaluate the application value and potential faults of Dual-source CT in carotid arterial angiography.Methods: We retrospectively analyzed the images of 477 patients with symptomatic carotid atherosclerosis detected by dual-source CT angiography(CTA) from February 2007 to January 2008,and evaluated the quality of the images,which were classified into 3 quality grades excellent(with clear display of the lesion and no noticeable motion artifacts,good(with a few motion artifacts but still diagnostically applicable),and poor(with heavy motion artifacts,unclear display and no diagnostic value).Results: Of the 477 images,420(88.1%) were of excellent quality,44(9.2%) of good quality and 13(2.7%) of poor quality.Among the total number of cases,134(28.1%) were shown to be normal and 34(7.1%) abnormal in anatomic structure.Atheromatous plaques were detected in 295 cases(61.8%),carotid artery stenting in 11(2.3%),internal carotid artery occlusion in 1,common carotid artery occlusion in 1,and cervical tumor in 3.Conclusion: Dual-source CT,faster,effective and minimally invasive,is particularly valuable in the diagnosis of carotid arterial lesion and stenosis.