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. 2021 Nov 15;49(5):1553–1559. doi: 10.1007/s00259-021-05612-9

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© The Author(s) 2021

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Fig. 2 — Difference in specific PET parameters in PVI vs. controls and RFA vs. CBA ablations. Left panel: The distribution of the specific PET parameters SUV_max (A) and SUV_peak (B) between uptake at PV antra in ablated (first 4 columns) and ablation-naïve individuals (controls) is depicted, demonstrating quantitatively significantly higher tracer uptake in PVI patients. RA uptake in PVI and ablation-naïve individuals was comparable highlighting the reliability of the results. Right panel: the quantitative differences (SUV_max) between RFA and CBA (C) with a trend of higher uptake for CBA compared to RFA patients; in (D) for SUV_peak, where significantly higher tracer uptake for CBA patients was observed. RFA, radiofrequency ablation; CBA, cryoballoon ablation; RSPV, right superior pulmonary vein; RIPV, right inferior pulmonary vein; LSPV, left superior pulmonary vein; LIPV, left inferior pulmonary vein; RA, right atrium; *, p ≤ 0.05; **, p ≤ 0.01; ns, non-significant