Author + information
Background: Ionising radiation may have hazardous effects on patient and operator in coronary angiography (CA). We examine the efficacy of radiation reduction algorithms (RRA) in lowering radiation dose in diagnostic CA (DCA)
Methods: Patient demographics, procedural variables and radiation parameters were analysed in patients who underwent DCA at our institution from January 2013 – September 2015, performed on either Allura Xper or Allura Clarity RRA (Philips Healthcare ®), the latter being newer generation. Primary outcome of the study was radiation dose (Dose Area Product) (mGycm2).
Multivariate analysis corrected for confounders and identified independent predictors of radiation dose
Results: 3423 patients were included in the study. 64.6% of patients were male, with a mean age of 60.9±11.0 years. Baseline characteristics were similar in both groups. 766 coronary angiograms were performed on Allura Clarity and 2657 on Allura Xper RRA, giving average radiation dose of 17230±15088 and 39879±40879 mGycm2 respectively.
Radiation dose was significantly higher in patients who had CA done using Allura Xper RRA, were male, had higher BMI, and chronic kidney disease (CKD). Radiation dose varied significantly between operators. Diabetics showed a trend towards higher radiation dose (Fig 1)
Conclusions: Allura Clarity RRA is associated with significantly lower radiation dose. CKD and Diabetes (surrogates for severe coronary artery disease) had higher radiation dose
Poster Hall, Hall C
Friday, March 17, 2017, 3:45 p.m.-4:30 p.m.
Session Title: Interventional Cardiology: Angiography, Intravascular Imaging and Interventional CT/MR
Abstract Category: 16. Interventional Cardiology: Angiography and Interventional CT/MR
Presentation Number: 1153-129
- 2017 American College of Cardiology Foundation