Estimation of Ejection Fraction with Echocardiographic and Cardioangiographic Methods in ۵۰ Cardiac Patients

Ejection fraction is the most important indicator of heart failure. Angiography , is a standard method to demonstrate ejection fraction but it is invasive. Therefore determination of sensitivity and specificity of echocardiography versus angiography is a good guidance for physicians. A total number of ۵۰ patients were enrolled in a prospective study. Two dimension and M-Mode echocardiography were first done in patients candidate for angiography and then they underwent coronary angiography. Sensitivity for M-Mode and ۲D echocardiography was ۵۹.۴% and ۴۳.۸% and specificity for them was ۱۰۰% and ۹۴.۴% respectively. The difference between the calculated amount of decrease in ejection fraction by ۲D echo and angiography was statistically signifcant (pechocardiography methods have less diagnostic accuracy in comparison to angiography. Pearson's correlation coefficient between calcuated ejection fractions by two modes of echocardiography and angiography was r=۰.۷۸ for M-Mode and r=۰.۴۴ for ۲D which means a stronger correlation between M-mode echocardiography and angiography.

کلیدواژه ها:

Ejection fraction ، echocardiography ، Angiography ، Sensitivity ، Specificity