Open AccessRadiation dose in coronary angiography and intervention: initial results from the establishment of a multi‐centre diagnostic reference level in Queensland public hospitals
Author(s) -
Crowhurst James A.,
Whitby Mark,
Thiele David,
Halligan Toni,
Westerink Adam,
Crown Suzanne,
Milne Jillian
Publication year - 2014
Publication title -
journal of medical radiation sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 18
eISSN - 2051-3909
pISSN - 2051-3895
DOI - 10.1002/jmrs.67
Subject(s) - medicine , percutaneous coronary intervention , conventional pci , fluoroscopy , coronary angiography , quartile , dose area product , angiography , nuclear medicine , radiation dose , radiology , cardiology , confidence interval , myocardial infarction
Radiation dose to patients undergoing invasive coronary angiography ( ICA ) is relatively high. Guidelines suggest that a local benchmark or diagnostic reference level ( DRL ) be established for these procedures. This study sought to create a DRL for ICA procedures in Queensland public hospitals. Methods Data were collected for all Cardiac Catheter Laboratories in Queensland public hospitals. Data were collected for diagnostic coronary angiography ( CA ) and single‐vessel percutaneous intervention ( PCI ) procedures. Dose area product ( P KA ), skin surface entrance dose ( K AR ), fluoroscopy time ( FT ), and patient height and weight were collected for 3 months. The DRL was set from the 75th percentile of the P KA.Results 2590 patients were included in the CA group where the median FT was 3.5 min (inter‐quartile range = 2.3–6.1). Median K AR = 581 mGy (374–876). Median P KA = 3908 uGym 2 (2489–5865) DRL = 5865 uGym 2 . 947 patients were included in the PCI group where median FT was 11.2 min (7.7–17.4). Median K AR = 1501 mGy (928–2224). Median P KA = 8736 uGym 2 (5449–12,900) DRL = 12,900 uGym 2 . Conclusion This study established a benchmark for radiation dose for diagnostic and interventional coronary angiography in Queensland public facilities.