Radiation dose in coronary angiography and intervention: initial results from the establishment of a multi‐centre diagnostic reference level in Queensland public hospitals. Issue 3 (4th August 2014)

• Record Type: Journal Article
• Authors: Crowhurst, James A.; Whitby, Mark; Thiele, David; Halligan, Toni; Westerink, Adam; Crown, Suzanne; Milne, Jillian
• Is Part Of: Journal of medical radiation sciences. Volume 61:Issue 3(2014:Sep.)
• Page Start: 135
• Page End: 141
• Publication Date: 2014-08-04
• Subjects: Radiology, Medical -- Periodicals; Radiology, Medical -- Australia -- Periodicals; Radiology, Medical -- New Zealand -- Periodicals; Radiotherapy -- Periodicals; Diagnostic imaging -- Periodicals; 616
• DOI: 10.1002/jmrs.67
• Languages: English
• ISSNs: 2051-3895

Abstract

<abstract abstract-type="main" id="jmrs67-abs-0001"> <title>Abstract</title> <sec id="jmrs67-sec-0001" sec-type="section"> <title>Introduction</title> <p>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.</p> </sec> <sec id="jmrs67-sec-0002" sec-type="section"> <title>Methods</title> <p>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 (<italic>P</italic><sub>KA</sub>), skin surface entrance dose (<italic>K</italic><sub>AR</sub>), fluoroscopy time (FT), and patient height and weight were collected for 3 months. The DRL was set from the 75th percentile of the <italic>P</italic><sub>KA.</sub></p> </sec> <sec id="jmrs67-sec-0003" sec-type="section"> <title>Results</title> <p>2590 patients were included in the CA group where the median FT was 3.5 min (inter‐quartile range = 2.3–6.1). Median <italic>K</italic><sub>AR</sub> = 581 mGy (374–876). Median <italic>P</italic><sub>KA</sub> = 3908 uGym<sup>2</sup> (2489–5865) DRL = 5865 uGym<sup>2</sup>. 947 patients were included in the PCI group where median FT was 11.2 min (7.7–17.4). Median <italic>K</italic><sub>AR</sub> = 1501 mGy (928–2224). Median <italic>P</italic><sub>KA</sub> = 8736 uGym<sup>2</sup> (5449–12, 900) DRL = 12, 900 uGym<sup>2</sup>.</p> </sec> <sec id="jmrs67-sec-0004" sec-type="section"> <title>Conclusion</title> <p>This study established a benchmark for radiation dose for diagnostic and interventional coronary angiography in Queensland public facilities.</p> </sec> </abstract>