CTA靶重建技术在30例颈动脉斑块诊断中的应用  

The clinical application of target reconstruction technique in carotid artery plaque

作　　者：吴晓莉[1] 饶刚[1] 杨华[2] 何晓荣[1] 张知贵[1] 

机构地区：[1]重庆市巴南区人民医院放射科,401320 [2]第三军医大学新桥医院放射科,重庆400037

出　　处：《重庆医学》2010年第19期2586-2587,2590,共3页Chongqing medicine

摘　　要：目的探讨16层螺旋CT靶重建技术在颈动脉斑块诊断中的应用价值。方法对30例行颈动脉CT血管造影(CTA)患者双侧颈动脉窦部进行靶重建,由2名有经验的放射科医生对图像进行独立分析,并与常规重建方法比较;计算软斑块、硬斑块及混合性斑块的数量;以靶重建为标准,计算常规重建对3种斑块检出的敏感度、准确度、特异度、阳性预测值及阴性预测值。结果靶重建图像的空间分辨率及密度分辨率均优于常规重建,能更敏感地检出颈动脉窦部斑块(P<0.05),能更清楚地显示细小钙化及混合性斑块的内部情况。结论靶重建技术可以作为颈动脉CTA检查的必要补充。Objective To explore the clinical value of 16-slice CT target reconstruction in carotid artery plaque.Methods Target reconstruction at bilateral carotid sinus were performed to 30 patients with carotid artery CT angiography（CTA）.all images were analyzed by two experienced radiologists independently,and compared with the images of conventional reconstruction.The number of soft plaque,hard plaque and mixed plaque were calculated respectively.The sensitivity,accuracy,specificity,positive predictive value and negative predictive value of conventional reconstruction were calculated by the standard of target reconstruction.Results The spatial resolution and density resolution of target reconstruction were superior to conventional reconstruction,it was more sensitive in the detection of carotid sinus plaque than conventional reconstruction（P0.05）,and it was more clearly in the display of small calcification and mixed plaque.Conclusion Target reconstruction can be used as a necessary complement technique to CTA examination of carotid artery.

关 键 词：体层摄影术 X线计算机 颈部动脉 血管造影 重建 

分 类 号：R543[医药卫生—心血管疾病]