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Correlation plots of methods for quantification. (A) VOI-based spectral analysis DVR-1 vs plasma input 2-tissue compartment model DVR-1 (r=0.98), (B) Voxel-based spectral analysis DVR-1 using five basis functions vs VOI-based spectral analysis DVR-1 using 50 basis functions (r=0.97) and (C) voxel-based spectral analysis DVR-1 vs RPM BPND (r=0.93).
