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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
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
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
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
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
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
H2 15O 0.27 ± 0.06 0.27 ± 0.06 0.28 ± 0.06
  1. SD standard deviation, AIF arterial sample-based input function, IDIF image-derived input function