Ejection Fraction in the Fast Lane.
PLM, K., RA, D.N., & N, H. (2026). Ejection Fraction in the Fast Lane.. Echocardiography (Mount Kisco, N.Y.). https://doi.org/10.1111/echo.70584
PLM K, RA DN, N H. Ejection Fraction in the Fast Lane.. Echocardiography (Mount Kisco, N.Y.). 2026; doi: 10.1111/echo.70584
PLM K, RA DN, N H. Ejection Fraction in the Fast Lane.[J]. Echocardiography (Mount Kisco, N.Y.). 2026. DOI: 10.1111/echo.70584.
@article{plm2026,
author = {Kerkhof PLM and Diaz-Navarro RA and Handly N},
title = {Ejection Fraction in the Fast Lane.},
journal = {Echocardiography (Mount Kisco, N.Y.)},
year = {2026},
doi = {10.1111/echo.70584},
note = {PMID: 42554017},
}
TY - JOUR AU - Kerkhof PLM AU - Diaz-Navarro RA AU - Handly N TI - Ejection Fraction in the Fast Lane. T2 - Echocardiography (Mount Kisco, N.Y.) PY - 2026 DO - 10.1111/echo.70584 AN - PMID:42554017 ER -
Ventricular performance is typically evaluated on the basis of primary measurements such as pressure, volume and flow. Representative recordings obtained from a healthy, chronically instrumented conscious dog can be employed to define various metrics, for example, the traditional holosystolic ejection fraction (EF). The metric EF is defined as 1 minus end-systolic volume (ESV) divided by end-diastolic volume (EDV). An alternative proposed 45 years ago refers to the first-third of EF (⅓EF), which is not (always) identical to first-phase EF1, launched several decades later. All these candidates refer to dimensionless ratios, and are therefore incomplete. Based on the early events during ejection time (ET), Kerkhof-Diaz-Handly (KDH) propose a more powerful metric which has the advantage of carrying physical units. The diastolic phase (TD) is the most variable portion of the cardiac cycle. ECG = electrocardiogram; LVD = left ventricular (equatorial) diameter; Paorta = ascending aorta pressure; Qaorta = ascending aorta flow.