Duplex criteria for in-stent restenosis in the superficial femoral artery
Catheterization and Cardiovascular Interventions, 06/08/2012
Kawarada O et al. – A peak systolic velocity ratio (PSVR) of 2.85 is the optimal threshold for in–stent restenosis (ISR) after nitinol stenting in the superficial femoral artery (SFA). Further large prospective studies are required for the validation and establishment of uniform criteria for duplex ultrasonography (DUS) parameters.