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• W2001675996 abstract "Factor analysis (FA) is an established method for separating myocardium from blood pool by use of oxygen 15-labeled water and positron emission tomography for analyzing myocardial blood flow (MBF). Conventional FA methods generating images from sinograms (sinoFA) are time-consuming, whereas FA can be performed on the reconstructed images (reconFA) in a fraction of time. We validated the MBF values obtained by reconFA versus sinoFA. In 23 volunteers (mean age, 26.6±3.4 years) MBF was calculated from sinoFA and reconFA and blindly reanalyzed 1 month later by the same observer. Intraobserver agreement and reconFA-versus-sinoFA agreement were assessed according to Bland and Altman (BA). Reproducibility proved excellent for global sinoFA (r=0.968; P<.001; BA limits, −0.617 to 0.676 mL·min−1·g−1) and slightly superior for reconFA (r=0.979; P<.001; BA limits, −0.538 to 0.558 mL·min−1·g−1), with wider limits of agreement for segmental MBF from sinoFA (r=0.777; P<.001; BA limits, −1.676 to 1.656 mL·min−1·g−1) and reconFA (r=0.844; P<.001; BA limits, −1.999 to 1.992 mL·min−1·g−1). In addition, sinoFA and reconFA showed excellent correlation (r=0.975, P<.001) and agreement (BA limits, −0.528 to 0.648 mL·min−1·g−1) for global and segmental values (r=0.955; P<.001; BA limits, −1.371 to 1.491 mL·min−1·g−1). Use of reconFA allows rapid and reliable quantitative MBF assessment with O-15-labeled water." @default.
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• W2001675996 date "2007-09-01" @default.
• W2001675996 modified "2023-09-25" @default.
• W2001675996 title "Assessment of myocardial perfusion by dynamic O-15–labeled water PET imaging: Validation of a new fast factor analysis" @default.
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• W2001675996 doi "https://doi.org/10.1016/j.nuclcard.2007.05.012" @default.
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