Radiation dose delivered to the patient in interventional cardiology procedures may be substantially high because of their complexity and variability. Ionizing radiation causes two kinds of effects: deterministic and stochastic. Stochastic effects are long-term and difficult or even impossible to detect in low doses. Deterministic effects are short-term and well studied in a wide range of radiation doses. Among deterministic effects, radiation induced skin injuries are one of the most relevant concerns for medical physics and radiation protection departments related to interventional cardiology. In recent...

The data analysed are offered by two independent DMSs: DoseWatchTM (GE Healthcare) (DW) and DOLQA Systems (Regional Health Council of Madrid). These systems gather the same information from the unit and allow to export almost the same items from each study. A Philips Allura Xper FD10 model is the interventional unit selected for the study, the device is installed at university hospital La Princesa (Madrid). 1171 procedures were performed using this unit from December 2020 to July 2022. In 842 of those, PSD was calculated...

The relative changes obtained comparing PSDs from both DMSs have been presented in Figure 1. The reference is PSD obtained with DOLQA. These values are fitted to a normal distribution with a mean difference of 12.2 ± 1.6 % and a sample standard deviation of 24 ± 1.1 %; errors express a 95 % confidence interval. The lower quartile, the median and the upper quartile are -4.1 %, 9.1 % and 25.7 % respectively. The extreme values are -54.1 % and 260.4 %. The percentage...

The results provided by both DMSs aren’t completely coherent. The remarkable differences between the linear regression and the DMSs are probably caused by the intrinsic limitation of this method to calculate the PSD. The gap between Jones et al.’s calculation theory and the DMSs are probably due to the overly unspecifity of the chosen factors. Thus, even if PSD is an accepted quantity to look out deterministic effects on skin, it’s necessary to standardize the way to compute it.

Donald L. Miller, Stephen Balter, Patricia E. Cole, Hollington T. Lu, Alejandro Berenstein, Robin Albert, Beth A. Schueler, Jeffrey D. Georgia, Patrick T. Noonan, Eric J. Russell, Tim W. Malisch, Robert L. Vogelzang, Michael Geisinger, John F. Cardella, James St. George, George L. Miller, Jon Anderson, Radiation Doses in Interventional Radiology Procedures: The RAD-IR Study Part II: Skin Dose, Journal of Vascular and Interventional Radiology, Volume 14, Issue 8, 2003. Miller DL, Balter S, Cole PE, Lu HT, Schueler BA, Geisinger M, Berenstein A, Albert...

R. Rosado del Castillo: Nothing to disclose P. Garcia Castañon: Nothing to disclose G. Paradela Díaz: Nothing to disclose C. PRIETO MARTIN: Nothing to disclose S. HONORATO HERNANDEZ: Nothing to disclose P. Chamorro: Nothing to disclose