Sex differences in the agreement between left ventricular ejectionfraction measured by myocardial perfusion scintigraphy and byechocardiography

摘要

Left ventricular ejection fraction (LVEF) is generally measured byechocardiography but is increasingly available with myocardial perfusionscintigraphy. With myocardial perfusion scintigraphy, the threshold of LVEFbelow which there is a risk for myocardial infarct or sudden cardiac deathis higher for women (51%) than for men (43%). We tested the hypothesis thatsuch a sex difference may also occur with echocardiography and myocardialperfusion scintigraphy.