TABLE 3

PET Imaging Results

		HFpEF
Parameter	Control (n = 12)	DD_0–1 (n = 22)	DD_2–3 (n = 19)	P
Global RI (min⁻¹)	0.123 ± 0.028	0.092 ± 0.024^*	0.075 ± 0.018^*^†	<0.001
Regional RI (min⁻¹)
Anterior	0.124 ± 0.028	0.097 ± 0.028^‡	0.078 ± 0.019^*^†	<0.001
Septal	0.128 ± 0.030	0.099 ± 0.025^*	0.085 ± 0.024^*	<0.001
Inferior	0.119 ± 0.029	0.087 ± 0.022^*	0.069 ± 0.019^*^†	<0.001
Lateral	0.119 ± 0.027	0.087 ± 0.027^*	0.067 ± 0.016^*^†	<0.001
CVRI (%)	7.9 ± 1.6	14.1 ± 4.7^*	18.4 ± 7.7^*^†	<0.001
¹¹C-hydroxyephedrine influx rate (mL⋅g⁻¹⋅min⁻¹)	0.302 ± 0.053	0.231 ± 0.065^*	0.189 ± 0.053^*	<0.001

↵* P < 0.01 vs. control.
↵† P < 0.05 vs. DD_0–1.
↵‡ P < 0.05 vs. control.
Data are mean ± SD.