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① by dual-source CT angiography of the neck (DSCTA) and color Doppler ultrasound (CDUS) on carotid atherosclerotic plaque control study, the assessment DSCTA (?) CDUS carotid atherosclerotic plaque detection of the correlation; the ② application DSCTA and the CDUS body carotid artery plaque explore two methods to evaluate plaque distribution, morphology, composition, the value of the degree of stenosis; (3) of carotid atherosclerosis (carotid atherosclerosis, CAS) relationship with the risk of ischemic stroke. Materials and Methods From March 2010 to March 2011, the First Affiliated Hospital of Kunming Medical treatment, after CDUS check prompt carotid atherosclerotic plaque in 150 patients with segmental units calculation and control of the two methods neck atherosclerotic plaque detection rate differences. All patients underwent carotid the full DSCTA check. Original image to find applications cross-sectional plaque, according to lesion characteristics line 2D, 3D post-processing, explore two methods of carotid artery plaque distribution, morphology, degree of stenosis, plaque law, the CTA results control CDUS respectively. The occurrence of carotid atherosclerotic plaque morphology and stenosis and ischemic stroke caused by correlation analysis. Consistent results the the 1,150 patients DSCTA and CDUS detected carotid of 1157, 708 of which found no atherosclerotic lesions, and another 449 found atherosclerotic plaque, the results are inconsistent with 43, two ways to detect carotid atherosclerotic plaque consistency with Kappa test (Kappa gt; 0.75, consistency), Kappa = 0.925, P lt; 0.001, showed that DSCTA and CDUS on the detection of carotid atherosclerotic plaque a high degree of consistency and inconsistency in the early or Xiaocheng thin layer of longitudinal plaque CDUS higher detection rate, the initial segment of the carotid artery and the internal carotid artery skull base and intracranial segment DSCTA, the detection rate is higher. CDUS compared, DSCTA carotid atherosclerotic plaque evaluation was 95%. 3, two methods of diagnosis of atherosclerotic plaques in the carotid distribution difference was statistically significant (P = 0.002), the two methods are of the highest rate of detection of the carotid artery bifurcation, carotid artery times , less the internal carotid artery and external carotid artery. 4, two methods of detection of the different nature of the plaque difference was statistically significant (P lt; 0.001), a higher detection rate of CDUS soft plaque, higher detection rate DSCTA calcium plaques. 5, the two methods of the various parts of the carotid atherosclerosis hardening of the wall and lumen morphology and plaque morphology are clearly displayed. 6, the two methods of stenosis check differences were statistically significant (P lt; 0.001) more CDUS mild stenosis detection rate. DSCTA more moderate and severe stenosis detection rate. 7, irregular plaque ulcers compared with other patches, irregular plaque and ulcer incidence of ischemic stroke is higher; 8, carotid stenosis and ischemic stroke analysis differences statistically significant (P lt; 0.001). The carotid stenosis heavier, the higher the incidence of stroke. Conclusions: 1, DSCTA and CDUS detection correlation of carotid atherosclerosis have a higher detection rate of the different parts of the atherosclerotic plaque. The early or Onari thin layer of longitudinal plaque the CDUS detection rate is higher. Of the initial segment of the common carotid artery and the internal carotid artery base of the skull and intracranial segment DSCTA detection rate is higher. 2, the highest incidence of carotid atherosclerotic plaques in the carotid artery bifurcation plaque, less carotid artery followed by the internal carotid artery and external carotid artery. DSCTA and CDUS on the different parts of the carotid artery plaque detected differences. Carotid artery bifurcation plaque highest detection rate, less carotid artery followed by the internal carotid artery and external carotid artery. , DSCTA with CDUS detection rate of the different nature of the atherosclerotic plaque, higher detection rate DSCTA calcified plaque, CDUS of soft plaque detection rate is higher. 4, thickening of plaque CDUS compared DSCTA the the show better, the remaining types of plaque both show no difference. 5 of carotid artery stenosis lesions, CDUS low-grade carotid stenosis have a higher sensitivity, DSCTA CDUS moderate stenosis detection rate is higher than that. 6, DSCT has powerful image processing methods to achieve a three-dimensional observation of the lesions, and to make the image clearer, more intuitive, more vivid, richer diagnostic information. 7, carotid stenosis and ischemic stroke incidence was positively correlated. Plaque morphology incidence of ischemic stroke, irregular and ulcerated plaques lead to ischemic stroke was higher than other plaque.
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