Table 3.

Comparison of EDV, ESV, and LVEF determined using conventional SPECT, IQ-SPECT, and CMR

	IQ	Conventional	CMR	Conventional vs. IQ	Conventional vs. CMR	IQ vs. CMR
(a) Normal group
EDV (mL)	87.7 ± 14.9	63.4 ± 16.3	129.7 ± 21.5	r = 0.824 P < 0.001	r = 0.883 P < 0.001	r = 0.758 P < 0.001
ESV (mL)	43.8 ± 10.0	18.1 ± 9.2	60.7 ± 11.7	r = 0.800 P < 0.001	r = 0.638 P = 0.002	r = 0.607 P = 0.005
LVEF (%)	50.6 ± 4.3	73.4 ± 8.4	53.2 ± 5.8	r = 0.652 P = 0.002	r = 0.181 P = 0.002	r = 0.652 NS
(b) Small-heart group
EDV (mL)	49.5 ± 9.6	45.9 ± 9.0	78.2 ± 18.8	r = 0.848 P < 0.001	r = 0.471 P = 0.010	r = 0.469 P = 0.010
ESV (mL)	19.2 ± 6.9	12.1 ± 6.8	28.1 ± 10.6	r = 0.779 P < 0.001	r = 0.539 P = 0.003	r = 0.408 P = 0.028
LVEF (%)	62.1 ± 7.8	75.0 ± 11.4	64.6 ± 8.8	r = 0.780 P < 0.001	r = 0.484 P = 0.007	r = 0.522 NS

Conventional conventional SPECT, CMR cardiovascular magnetic resonance, IQ IQ-SPECT, EDV end-diastolic volume, ESV end-systolic volume, LVEF left ventricular ejection fraction, NS not statistically significant

Data are represented as the mean ± standard deviation