目的：探讨128层螺旋CT低碘流率、低管电压冠状动脉成像对冠状动脉斑块检出的临床价值。方法：选择我院收治的冠状动脉斑块患者100例。根据随机数字表法分为对照组和观察组各50例，观察组的碘流率1480 mgI/s，管电压100 kV，对照组的碘流率1850 mgI/s，管电压120 kV。比较2组冠状动脉的狭窄程度、PI、RI、SID、钙化CT评分。结果：观察组的冠状动脉轻度、中度、重度狭窄或闭塞与对照组比较，差异均无统计学意义（均P>0.05）；观察组的钙化CT评分显著高于对照组（均P<0.05）。结论：128层螺旋CT低碘流率、低管电压冠状动脉成像诊断冠状动脉斑块狭窄程度准确性高，可用于评估冠状动脉斑块的严重程度，值得临床推广。%Objective:To discuss accuracy of coronary artery plaque detection by using 128 slice spiral CT with low iodine flow rate and low tube voltage coronary artery imaging detection. Methods:100 cases of patients with coronary plaque hospital-ized from May 2013 to May 2015 in our hospital were selected,according to the random number table method,they were divid-ed into the control group and the observation group,there were 50 cases of each group,the iodine flow rate of the observation group was 1 480 mgI/s,tube voltage was 100 kV,the iodine flow rate of the observation group was 1 850 mgI/s,tube voltage was 120 kV,and the degree of plaque stenosis;coronary artery calcification, plaque rupture detection were compared between the two groups. Results:The mild, moderate and severe stenosis of coronary artery in the observation group had no significant difference compared with the control group (P>0.05). Coronary artery calcification and plaque rupture in the observation group were sig-nificantly higher than those in the control group;the differences were statistically significant (P<0.05). Conclusion:The accura-cy of 128 slice spiral CT with low iodine flow rate and low tube voltage in diagnosis of coronary artery stenosis is high and can be used to evaluate the severity of coronary plaques. It is worthy of clinical promotion.
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