EJNMMI Research

Table 2 Mean kinetic parameter estimates from three-parameter fit (without V _RV)

From: Quantification of myocardial blood flow with ⁸²Rb: Validation with ¹⁵O-water using time-of-flight and point-spread-function modeling

			AIF	Scaled IDIF	Uncorrected IDIF
K ₁ (mL/min/g) mean ± SD	Rest	⁸²Rb	0.43 ± 0.09	0.45 ± 0.05	0.53 ± 0.06
	Rest	H₂ ¹⁵O	0.87 ± 0.21	0.86 ± 0.15	0.91 ± 0.16
	Stress	⁸²Rb	0.99 ± 0.19	1.11 ± 0.13	1.30 ± 0.17
	Stress	H₂ ¹⁵O	3.43 ± 1.62	3.53 ± 0.85	3.68 ± 0.89
k ₂ (1/min) mean ± SD	Rest	⁸²Rb	0.11 ± 0.05	0.13 ± 0.04	0.13 ± 0.04
	Rest	H₂ ¹⁵O	1.10 ± 0.31	1.05 ± 0.22	1.05 ± 0.22
	Stress	⁸²Rb	0.21 ± 0.06	0.23 ± 0.08	0.23 ± 0.08
	Stress	H₂ ¹⁵O	3.76 ± 1.24	4.10 ± 1.06	4.10 ± 1.06
V _A mean ± SD	Rest	⁸²Rb	0.32 ± 0.05	0.37 ± 0.04	0.40 ± 0.05
	Rest	H₂ ¹⁵O	0.29 ± 0.08	0.33 ± 0.05	0.34 ± 0.06
	Stress	⁸²Rb	0.31 ± 0.06	0.40 ± 0.06	0.44 ± 0.06
	Stress	H₂ ¹⁵O	0.27 ± 0.06	0.27 ± 0.06	0.28 ± 0.06

SD standard deviation, AIF arterial sample-based input function, IDIF image-derived input function

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