双能量CTA在诊断颈动脉不稳定斑块与狭窄中的价值.docVIP

精品论文 参考文献 双能量CTA在诊断颈动脉不稳定斑块与狭窄中的价值 山东省日照市人民医院CT室 276800 摘要：目的 探讨双能量CTA在诊断颈动脉不稳定斑块与狭窄中的价值。方法 应用双源CT对60例缺血性脑梗死患者（A组）、60例有缺血性脑血管病症状但无脑梗死患者（B组）及60例健康人群（C组）进行颈动脉双能量CTA检查，统计分析各组颈动脉斑块总数、斑块性质、部位、狭窄程度。结果（1）三组斑块总数、不稳定斑块数、稳定斑块数比较差异有统计学意义，A组和B组以不稳定斑块为主，C组以稳定斑块为主。（2）三组颈动脉狭窄程度比较有显著性差异，斑块分布部位无差异。（3）Logistic回归分析显示，颈动脉不稳定斑块、狭窄程度是缺血性脑梗死的重要危险因素。结论 双能量CTA能够判断斑块稳定性及血管狭窄程度，对防治缺血性脑血管病事件的发生、发展有重要临床意义。 关键词：双能量CTA；颈动脉狭窄；颈动脉不稳定斑块 Abstract：Objective To explore the value of dual source CT dual energy CTA in the diagnosis and analysis of carotid unstable plaque and stenosis.Methods The dual source CT dual energy CTA was used to exam the subjects，including 60 patients with ischemic cerebral infarction（A group），60 patients with symptoms of ischemic cerebrovascular disease but no cerebral infarction（B group），60 healthy controls.The carotid plaque quantity，quality，place and degree of stenosis were measured.Results（1）There were statistical differences between each group of the total number of carotid plaque，number of stable plaque and number of unstable plaque.Patients in group A and B were mainly with unstable plaque，while group C was mainly with stable plaque.（2）There were statistical differences between each group of the degree of stenosis，but no statistical difference of the plaque place.（3）Using logistic regression analysis，we found that the number of un stable plaque and the degree of carotid stenosis were important risk factors of ischemic cerebral infarction.Conclusion Dual source CT dual energy CTA can analyse the stability of plaque and the degree of carotid stenosis，which has important clinical significance for the prevention and treatment of ischemic cerebrovascular disease. Keywords：dual energy CTA；carotid stenosis；carotid unstable plaque CT血??造影（computed tomography angiography，CTA）技术是一项非创伤性的检查血管疾病的方法，越来越受到临床医生及患者的认可。双源CT是目前世界上最先进的CT设备之一，具有极高的时间分辨率和空间分辨率。在头颈部血管检查方面其优点为时间短、成功率高、费用相对低廉、并发症少、安全无创等，而且利用其在硬件和软件的优势技术，使原本复杂的操作步骤简单化，极大提高了检查速度和质量，实现了真正意义的各向同性扫描，有助于临床医师从多角度、全方位观察解析头