Abstract
Purpose To analyze the radiation exposure of the medical staff from various interventional radiology procedures and to evaluate the RaySafe i2 real time dosimetric system. Methods A two-stage multicentric study was conducted for about six months and involved four hospital centers. Data were collected from the RaySafe i2 dosimetric system on radiation doses absorbed by medical interventionists, nurses and patients in interventions of coronary angiography, coronary angiography followed by percutaneous transluminal coronary (PTCA), PTCA, transcatheter aortic valve implantation (TAVI) and implantation or pacemaker replacement (PM). In the first phase of the study, the RaySafe system monitor was not in the interventionist radiology room, on the contrary, in the second phase. At the end of the study, a satisfaction questionnaire was provided to the medical staff. A descriptive statistic analysis of the individual doses and the sum of the doses (both normalized with respect to the patient’s total Dose Area Product (DAP)) was carried out using the STATA software. Moreover, ANOVA test and Mann–Whitney–Wilcoxon test were performed to compare the various data samples. Results Concerning the radiation doses and the sum of the radiation doses (both normalized with respect to the patient’s total DAP), Raysafe i2 doesn’t led to a statistically significant reduction of the values for all evaluated operation types. Regarding the fiftieth percentile of dose samples, the variation ranges recorded between all centres are reported in Table 1. Conclusions The recorded differences between the two phases of this multicentric study aren’t statistically significant, probably due to the reduced number of samples. However, the medical staff has positively evaluated RaySafe i2 in optimizing its way of working and provided useful suggestions on how to use the system.
Published Version
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