斑块钙化及心率变异性与DSCT冠脉成像质量的相关性

Correlation between Plaque Calcification and Heart rate Variability and DSCT Coronary Imaging Quality

目的探讨斑块钙化及心率变异性与DSCT冠脉成像质量的相关性。方法选取2016年1月~2018年1月我院收治的86例行DSCT冠脉成像患者,随机分为两组,对照组行冠状动脉造影检查,研究组行DSCT冠脉成像。比较各钙化积分对DSCT诊冠脉狭窄的影响、各心率变异性对DSCT冠脉狭窄诊断影响和心率波动对DSCT冠脉评分比较。结果1~10分图像质量评分明显高于11~100分、101~400分和>400分图像质量评分,1~10分符合率明显高于11~100分、101~400分和>400分符合率(P<0.05)。<6%的图像质量评分显著高于6%~10%和>10%的图像质量评分,并且<6%的符合率显著高于6%~10%和>10%的符合率(P<0.05)。≤5需要的总冠脉支数要明显高于6~10、>10需要的总冠脉支数,差异具有统计学意义(P<0.05)。结论DSCT能够对冠状动脉管腔进行有效的观察和诊断,并且斑块钙化是DSCT冠脉成像质量的重要影响因素,但是和心率变异性没有明显相关性。

Objective to investigate the correlation between plaque calcification and heart rate variability and the quality of DSCT coronary imaging.Methods a total of 86 DSCT coronary imaging patients admitted to our hospital from January 2016 to January 2018 were randomly divided into two groups.The control group received coronary angiography and the study group received DSCT coronary angiography.The influence of calcification points on the diagnosis of coronary artery stenosis by DSCT,the influence of heart rate variability on the diagnosis of coronary artery stenosis by DSCT,and the comparison of heart rate fluctuation on the coronary artery score by DSCT were compared.Results the 1~10 score of image quality was significantly higher than that of 11~100,101~400 and>400,and the 1~10 score of image quality was significantly higher than that of 11~100,101~400 and>400(P<0.05).The image quality score<6%was significantly higher than that of 6~10%and>10%,and the coincidence rate<6%was significantly higher than that of 6~10%and>10%(P<0.05).The total coronary artery count required by 5 was significantly higher than that required by 6~10 and>10,and the difference was statistically significant(P<0.05).Conclusion DSCT can effectively observe and diagnose coronary lumen and calcify plaque DSCT is an important factor affecting the quality of coronary imaging,but has no significant correlation with heart rate variability.