Three-dimensional Echocardiography Was Used To Quantitatively Evaluate The Left Ventricular Motion Synchronization Correlation Of Degree Of Coronary Artery Stenosis

Objective:Real-time three-dimensional echocardiography(RT-3DE)was used to observe the myocardial movement synchronization,evaluate the degree of coronary artery stenosis,and quantitatively evaluate the relationship between the degree of coronary artery stenosis and Genisini score,so as to provide accurate and objective ultrasonic basis for whether patients need coronary angiography and related treatment.Methods: In September of 2019-to 2020-September in our hospital patients with suspected coronary artery disease,to obtain the relevant clinical data,and check in coronary angiography before RT 3 DE examination,determination of related numerical,including Tmsv16-SDI,EF,LV-EDV,LV-ESV,SV,R-R interval,heart rate.According to the results of CAG,the inspectors were divided into normal control group,low-risk group(0<GS score<20),medium-risk group(20≤GS score <45)and high-risk group(GS score ≥45)by GS score,and tere are 30 people in each group.We use the statistical software SPSS 26.0 to analyze the differences of related indicators between the experimental groups and the control group.We use Pearson correlation analysis to analyze the correlation between TMSV16-SDI and Genisini score.The cut-off point for predicting Genisini score value of each group with RT-3DE was found by using the receiver diagnostic characteristic curve(ROC curve).Results: The ejection fraction(EF)automatically measured by RT-3DE was smaller than that of two-dimensional EF,but the difference was not statistically significant(P = 0.09).Pearson analysis showed a significant positive correlation between TMSV16-SDI and Genisini score(r = 0.705,P = 0.000).The ROC curve showed that the area under curve(AUC)of TMSV16-SDI for predicting coronary artery stenosis was 0.902,the optimal cut-off value was 7.15%,the sensitivity was 0.858,the specificity was 0.857,the positive and negative likelihood values were 6.0 and 0.17,respectively.Conclusion: The synchronization of left ventricular movement in patients with CHD became worse with the increase of GS score.RT-3DE can be used as a means to quantitatively evaluate and predict the degree of coronary artery stenosis.