Creation of a high-quality digital image system ClarityIQ on angiography equipment Allural Clarity Xper F 20/20 (Philips Medical System, Best, The Netherlands) is associated with lower patient radiation burden than the previous generation of equipments. The aim of the study was comparison of the effective doses of ionizing radiation on two angiographic intervention equipments Allura Xper F 20 (Philips Medical System, Best, The Netherlands) and Philips Allura Xper FD Clarity 20/20 (Philips Medical System, Best, The Netherlands).