Abstract 3146: Automated Echo Determination of Left Ventricular Ejection Fraction Using AutoEF
A reduction in left ventricular ejection fraction (LVEF) is associated with adverse outcomes in cardiac patients. An accurate quantitative echo assessment of LVEF can be accomplished using the Simpson’s rule, however this is a time consuming procedure. A new software program has recently been developed which uses progressive pattern-recognition technology applied to standard 2-demensional echo images to determine LVEF in an automated fashion (AutoEF, Siemens Medical, Malvern, PA). We compared LVEF determined by AutoEF and nuclear scientigraphy.
Methods: 26 patients were included in the study who underwent both an echo and a nuclear stress test no more than 30 days apart. Patients who had a myocardial infarction or revascularization procedure 30 days prior to either study were excluded.
Results: LVEF determined using AutoEF and nuclear scientigraphy were compared using correlation coefficients shown in figure⇓ below. R square value comparing the two techniques was 0.74.
Conclusion: Echo determined LVEF using AutoEF is comparable to LVEF determined using nuclear scientigraphy.