Correlation between cardiac two-dimension global strain-speckle tracking imaging and coronary artery disease index scores in patients with acute myocardial infarction / 中国医师进修杂志

ABSTRACT

Objective To observe the correlation between cardiac two-dimension global strain-speckle tracking imaging (2D-STI) and coronary artery disease index (CADi) scores in patients with acute myocardial infarction(AMI). Methods Eighty patients with AMI were chosen and given myocardial motion analysis using 2D-STI. The global longitudinal strain (GLS), global radial strain (GRS) and global circumferential strain (GCS) was calculated. All patients were given scoring according to CADi scores standard by coronary angiography. The correlations between 2D-STI indexes and CADi scores were analyzed. The area under curve(AUC) of the receiver operating characteristic curve (ROC) of critical coronary stenosis was calculated. Results GLS, GRS and GCS was all correlated to CADi scores (r=0.670, -0.621, 0.525, all P < 0.01). The sensitivity, specificity and AUC of GLS for critical coronary stenosis was 82.35%, 80.43% and 0.831. The sensitivity, specificity and AUC of GCS for critical coronary stenosis was 76.47%, 76.09% and 0.797. The sensitivity, specificity and AUC of GRS for critical coronary stenosis was 97.06%, 78.26% and 0.880. The AUC of GLS and GRS was larger than that of GCS, and the sensitivity, specificity for critical coronary stenosis was larger. Conclusions 2D-STI indexes have correlation with CADi scores. GLS and GRS has correlation with coronary artery stenosis.