Table 3.

Sensitivity, specificity and AUC of the strains and LVEF for differentiating normal controls and HFpEF.

Parameters	Patient type	Cut-off value	Sensitivity	Specificity	AUC
${\mathrm{\epsilon }}_{\mathrm{C}\mathrm{C}}^{\mathrm{R}\mathrm{V}}$ (%)	HFpEF	6.39	0.400	1.000	0.715
${\mathrm{\epsilon }}_{\mathrm{C}\mathrm{C}}^{\mathrm{L}\mathrm{V}}$ (%)	HFpEF	13.10	1.000	1.000	1.000
${\mathrm{\epsilon }}_{\mathrm{C}\mathrm{C}}^{\mathrm{S}\mathrm{e}\mathrm{p}}$ (%)	HFpEF	7.26	0.800	0.700	0.690
${\mathrm{\epsilon }}_{\mathrm{L}\mathrm{L}}^{\mathrm{R}\mathrm{V}}$ (%)	HFpEF	14.12	0.800	0.800	0.780
${\mathrm{\epsilon }}_{\mathrm{L}\mathrm{L}}^{\mathrm{L}\mathrm{V}}$ (%)	HFpEF	12.85	0.900	0.900	0.950
${\mathrm{\epsilon }}_{\mathrm{L}\mathrm{L}}^{\mathrm{S}\mathrm{e}\mathrm{p}}$ (%)	HFpEF	14.90	0.700	0.900	0.750
${\mathrm{\epsilon }}_{\mathrm{R}\mathrm{R}}^{\mathrm{R}\mathrm{V}}$ (%)	HFpEF	25.26	0.700	0.600	0.660
${\mathrm{\epsilon }}_{\mathrm{R}\mathrm{R}}^{\mathrm{L}\mathrm{V}}$ (%)	HFpEF	30.53	0.900	0.800	0.890
${\mathrm{\epsilon }}_{\mathrm{R}\mathrm{R}}^{\mathrm{S}\mathrm{e}\mathrm{p}}$ (%)	HFpEF	20.51	0.900	0.500	0.700
LVEF	HFpEF	59	0.800	1.000	0.945

${\mathit{\epsilon }}_{\mathit{C}\mathit{C}}^{\mathit{R}\mathit{V}}$, right ventricular peak circumferential strain; ${\mathit{\epsilon }}_{\mathit{C}\mathit{C}}^{\mathit{L}\mathit{V}}$, left ventricular peak circumferential strain; ${\mathit{\epsilon }}_{\mathit{C}\mathit{C}}^{\mathit{S}\mathit{e}\mathit{p}}$, septum peak circumferential strain; ${\mathit{\epsilon }}_{\mathit{L}\mathit{L}}^{\mathit{R}\mathit{V}}$, right ventricular peak longitudinal strain; ${\mathit{\epsilon }}_{\mathit{L}\mathit{L}}^{\mathit{L}\mathit{V}}$, left ventricular peak longitudinal strain; ${\mathit{\epsilon }}_{\mathit{L}\mathit{L}}^{\mathit{S}\mathit{e}\mathit{p}}$, septum peak longitudinal strain; ${\mathit{\epsilon }}_{\mathit{R}\mathit{R}}^{\mathit{R}\mathit{V}}$, right ventricular peak radial strain; ${\mathit{\epsilon }}_{\mathit{R}\mathit{R}}^{\mathit{L}\mathit{V}}$, left ventricular peak radial strain; ${\mathit{\epsilon }}_{\mathit{R}\mathit{R}}^{\mathit{S}\mathit{e}\mathit{p}}$, septum peak radial strain; LVEF, left ventricular ejection fraction.