Measurement and analysis of peak skin dose for patients with interventional cardiology procedures
Objective To obtain the peak skin dose(PSD)of patients with interventional cardiology procedures and to evaluate the risk of deterministic effects.Methods Gafchromic XR RV3 films were used in a Level A tertiary hospital in Beijing to measure the PSD of patients who underwent interventional cardiology procedures.The measurement focused on four common types of procedures,including coronary angiography,percutaneous transluminal coronary angioplasty,cathet-er radiofrequency ablation,and congenital heart disease.The films were scanned by EPSON EXPRESSION 10000XL and analyzed by FILM QA ProTM 2014 software.Results PSD was measured in 59 patients with interventional cardiology pro-cedures,including 23 with coronary angiography,21 with percutaneous transluminal coronary angioplasty,9 with catheter radiofrequency ablation,and 6 with congenital heart disease.The seven patients with PSD≥2 Gy all underwent percu-taneous transluminal coronary angioplasty,one with PSD>3 Gy and six with PSD<2 Gy.Conclusion The PSD of some patients with interventional cardiology surgery exceeded the dose threshold of deterministic effects recommended by the ICRP 118.There is a risk of deterministic effects in interventional cardiology surgery,especially in patients with percu-taneous transluminal coronary angioplasty.
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