螺旋CT血管成像诊断颈动脉狭窄56例
The reliability research of spiral computed tomography angiography to the diagnosis of carotid artery stenosis disease
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摘要: 目的: 探讨螺旋CT血管成像(SCTA)在诊断颈动脉狭窄中的临床价值。方法: 对56例缺血性脑血管病患者的SCTA及DSA的影像资料进行分析。结果: 56例224支颈动脉(颈总、颈内)中,DSA检出156支狭窄,SCTA检出159支狭窄;以DSA为标准,SCTA诊断颈动脉狭窄的敏感度为97.44%,特异度为89.71%,阴性预测值为93.85%,阳性预测值为95.60%,Kappa值为0.882 4,SCTA与DSA诊断颈动脉血管狭窄的结果呈正相关关系(P＜0.01)。结论: SCTA是颈动脉病变检查较为安全可靠一种方法,具有重要的临床意义。Abstract: Objective: To assess the value of spiral computed tomography angiography (SCTA)in carotid artery stenosis disease. Methods: The data of digital subtraction angiography(DSA)and SCTA in 56 patients with cerebral ischemic disease was analyzed. Results: Based on the results of DSA, the sensitivity of SCTA was 97.44% in detecting 159 carotid artery in 56 cases, its specificity was 89.71 %,negative predictive value was 93.85%,positive predictive value was 95.60%,Kappa value was 0.8824.SCTA was positively correlated with DSA in the diagnosis of carotid artery stenosis(P＜0.01).Conclusions: SCTA is of great clinical significance in the diagnosis of carotid artery stenosis disease,SCTA has less trauma and danger than DSA.
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