A retrospective study of radiation dose measurements comparing different cath lab X‐ray systems in a sample population of patients undergoing percutaneous coronary intervention for chronic total occlusions

Objectives A retrospective study was performed to investigate if the generation of X‐ray system used was an independent factor for radiation dose in chronic total occlusion (CTO) percutaneous coronary intervention (PCI). Background PCI procedures for CTOs are known to be associated with higher doses of radiation. The authors suspected progressive reductions in radiation doses for CTO PCI as newer X‐ray systems were introduced into clinical...