Cardiovascular magnetic resonance feature tracking for characterization of patients with heart failure with preserved ejection fraction: correlation of global longitudinal strain with invasive diastolic functional indices

Table 4 Correlation of various factors with the time constant of active relaxation (Tau)

	Pearson’s correlation coefficient (r)	B _{non-standardized}	p
Age	−0.676	−1.118	0.002
BMI	0.102	0.424	0.687
LV EDVI	0.536	0.703	0.022
LV ESVI	0.486	0.978	0.041
LV CI	0.067	1.622	0.791
LV EF	−0.244	−88.398	0.328
LV mass index	0.504	0.458	0.033
LV ECV	−0.064	− 0.467	0.801
LV GLS	0.817	6.141	< 0.001
LV GCS	0.539	−3.795	0.021
LV GRS	−0.552	−1.411	0.017
nPFR	−0.015	−0.845	0.953
LA EDVI	0.219	0.390	0.383
LA ESVI	0.141	0.367	0.577
LA EF	0.068	29.204	0.788
LA total strain	−0.061	−0.339	0.816
LA conduit strain	0.195	1.382	0.452
RV EDVI	0.36	0.679	0.142
RV ESVI	0.104	0.320	0.683
RV EF	0.234	70.330	0.351
RV GLS	0.412	2.639	0.089
RA EDVI	−0.169	−0.372	0.504
RA ESVI	−0.124	− 0.371	0.625
RA EF	−0.106	−21.681	0.676
β	0.106	226.886	0.686

Univariate regression analysis was performed with the Pearson correlation coefficient

ISSN: 1532-429X