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. 2020 Nov 2;48(4):1040–1069. doi: 10.1007/s00259-020-05046-9

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© The Author(s) 2020

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Fig. 4 — Effect of 15 mm PET/CT misalignment on absolute MBF for values measured from washout rate ([¹⁵O]water; left) and values measured from uptake rate (⁸²Rb or [¹³N]NH₃; right). Polar maps are based on the same simulated MBF scans for both cases. Misalignment results in a very slight increase in measured MBF for [¹⁵O]water and in a large anterior defect for ⁸²Rb or [¹³N]NH₃