Table 4

Correlation between some measured and calculated variables and the degree of overestimation of ejection fraction (EF) by Teichholz’s formula (n = 16)

Linear correlation to overestimation of EFLevel of significance
Wall thickness r = 0.62p = 0.011
LV end systolic diameter r = −0.47NS
Hypertension or cardiomyopathy r = 0.44NS
Age r = −0.31NS
LV end diastolic diameter r = −0.16NS
EF by radionuclide angiography r= 0.13NS
Sex r = 0.05NS