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Table 4 Bias, Prearson’s correlation (R), and Lin’s concordance (ccc) between first-pass PET and myocardial SPECT LV functional parameters according to the LV segmentation threshold

From: Feasibility of biventricular volume and function assessment using first-pass gated 15O-water PET

Threshold (%) LV EDV (mL) LV ESV (mL) LV SV (mL) LV EF (%)
Bias R ccc Bias R ccc Bias R Conc. Bias R ccc
20 + 12 0.89 0.83 + 14 0.86 0.69 − 2 0.67 0.64 − 10 0.66 0.45
25 + 7 0.89 0.86 + 9 0.86 0.79 − 2 0.67 0.65 − 7 0.69 0.56
30 + 1 0.89 0.88 + 4 0.87 0.85 − 3 0.67 0.65 − 4 0.67 0.61
35 − 5 0.89 0.87 − 1 0.86 0.85 − 4 0.68 0.65 − 2 0.66 0.64
40 − 11 0.89 0.81 − 5 0.86 0.79 − 6 0.67 0.61 + 1 0.65 0.63
  1. LV left ventricle, EDV end-diastolic volume, ESV end-systolic volume, SV stroke volume, EF ejection fraction