The Prediction of the Risk of Acute Myocardial Infarction with 64-row CT Coronary Angiography and Left Ventricular Function Analysis / 实用放射学杂志

ABSTRACT

Objective To predict the risk of acute myocardial infarction with 64-row CT and left ventricular function analysis.Methods Both 64-row CT coronary angiograhphy and 64-row CT left function in 289 patients were analysed. All the patients were divided into four groups according to the degree of stenosis of their coronary arteries. Mean left ventricular myocardial mass( LVMM ) , left ventricular ejection fraction(LVEF) and left ventricular end diastolic volume(LVEDV) of each group were calculated and compared with their clinical materials.Results LVMM, LVEDV as determined with 64-row corrected well with the occurrence of the myocardial ischemia proved by clinical evidence(r≈0.82,0.76),while LVEF showed a negative correction(r≈-0.74).Conclusion It is not accurate enough to predict the acute myocardial infarction with only the degree of narrow of the coronary artery. 64-row CT provides not only the degree of stenosis of the coronary artery , but also the functional features of the left ventricular as well. Both of them are of much importance to predict the risk of the acute myocardial infarction.