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Table 3 Temporal changes in CFVR, maximum baseline blood flow, and maximum hyperemic blood flow in collateral donor artery and recanalized coronary artery (n = 28 patients with successful CTO recanalization)

From: Prompt and consistent improvement of coronary flow velocity reserve following successful recanalization of the coronary chronic total occlusion in patients with viable myocardium

  Collateral donor artery Recanalized artery
CFVR pre-PCI 2.30 ± 0.49 /
• Maximum baseline blood flow velocity (m/s) 0.28 ± 0.06 /
• Maximum hyperemic blood flow velocity (m/s) 0.64 ± 0.1 /
CFVR 24 h after PCI 2.71 ± 0.45 2.55 ± 0.35
• Maximum baseline blood flow velocity (m/s) 0.24 ± 0.04 0.28 ± 0.07
• Maximum hyperemic blood flow velocity (m/s) 0.64 ± 0.16 0.71 ± 0.18
CFVR 6 months after PCI 2.68 ± 0.24 2.62 ± 0.26
• Maximum baseline blood flow velocity (m/s) 0.26 ± 0.05 0.26 ± 0.03
• Maximum hyperemic blood flow velocity (m/s) 0.70 ± 0.16 0.69 ± 0.09
  1. CFVR coronary flow velocity reserve