Related Experiment Video
Updated: Jul 14, 2026
Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging
Published on: May 24, 2021
Gender differences in ventricular volumes and left ventricle ejection fraction estimated by myocardial perfusion
Alice Tatsuko Yamada1, Guilherme de Carvalho Campos Neto, José Soares
1Instituto do Coração, Hospital das Clínicas, FM, USP, São Paulo, SP, Brazil. alice.yamada@incor.usp.br
Objectives:
To test for gender differences in the measurements obtained by Segami and Quantitative Gated SPECT (QGS) software programs.
Methods:
181 asymptomatic individuals without heart disease were submitted to myocardial perfusion imaging. End-diastolic volumes (EDV), end-systolic volumes (ESV) and left ventricular ejection fraction (LVEF) were measured by QGS and Segami software programs to evaluate the influence of gender, age, weight, height, heart rate, systolic blood pressure, diastolic blood pressure, body mass index and body surface area.
Results:
The means in the QGS method were: EDV (women= 68 ml; men= 95 ml; p<0.001), LVEF (women= 66.24%; men= 58, 7%) and Segami: EDV (women= 137 ml; men= 174 ml), LVEF (women= 62.67%; men= 58, 52%). There were significant differences between men and women in the EDV (p<0.001), ESV (p<0.001) and LVEF (p=0.001) that persisted after adjusting for body surface area.
Conclusion:
Ventricular volumes were significantly lower and LVEF was significantly higher in women, estimated by QGS or Segami software programs.
