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Skin radiation injuries in patients following repeated coronary angioplasty procedures

¹Medical Physics Service, ²Interventional Cardiology Service and ³Radiotherapy Service, San Carlos University Hospital, 28040 Madrid, Spain

View larger version (125K): [in a new window]   Figure 1. Image of a slow film to evaluate the skin dose distribution and maximum skin dose (MSD) in a coronary angiography. Dose–area product 36 Gy cm2, 1031 frames and 2.1 min of fluoroscopy. The MSD was 144 mGy.

View larger version (125K): [in a new window]   Figure 2. Image of a slow film to evaluate the skin dose distribution and maximum skin dose (MSD) in a percutaneous transluminal coronary angioplasty. The high concentration of radiation fields was unusual. Dose–area product 64 Gy cm2, 660 frames and 10.0 min. The MSD was 750 mGy.

View larger version (90K): [in a new window]   Figure 3. Patient with pigmentation and subcutaneous fibrosis. Patient ID MEG-8, 73 years of age, 10 coronary angiographies and 10 percutaneous transluminal coronary angioplasties (PTCAs) carried out between 1992 and 1998. Two PTCAs were performed in another hospital. Total estimated dose–area product 2019 Gy cm2; total estimated maximum skin dose 9.5 Gy.