Khoury, Helen Drexler, Guenter GSF-National Research Center for Environment and Health, Neuherberg Barros, Edison (authors)Įvaluation of skin entrance dose imparted on pediatric patients by thorax exams In the study, the appropriate trigger levels were proposed for both facilities. However, results show that the best dose indicator which might serve for rough, preliminary estimation is DAP value. No general and satisfactory correlation was found for safe estimation of MSD. Moreover, for CA procedures, CD and EFD were in the ranges (295-4689) mGy and (121-1768) mGy and for PCI (267-6524) mGy and (68-2279) mGy, respectively. For CA procedures, the registered values of fluoroscopy time, total DAP and MSD were in the range (0.7-27.3) min, (16-317) Gy cm 2 and (43-1507) mGy, respectively, and for interventions, accordingly (2.1-43.6) min, (17-425) Gy cm 2, (71-1555) mGy. The study was performed in two different facilities for two most common cardiac procedures coronary angiography (CA) and percutaneous coronary interventions (PCI). This study aimed at relating those dose indicators with doses ascribed to the most irradiated areas of the patient skin usually expressed in terms of local maximal skin dose (MSD). Various dose indicators like dose-area product (DAP), cumulative dose (CD) and entrance dose at the patient plane (EFD) are used for patient dosimetry purposes in clinical practice. In most countries of European Union, legislation requires the determination of the total skin dose received by patients during interventional procedures in order to prevent deterministic damages. International Nuclear Information System (INIS)ĭomienik, J.

Practical compliance with ICRP recommendations requires a robust method for skin dosimetry that is more accurate than DAP and is applicable over a wider dose range than EDR2 film.Ĭorrelation of patient maximum skin doses in cardiac procedures with various dose indicators Dose-area product (DAP) was also recorded and was found to be an inadequate indicator of maximum skin dose.

However, 23% of PTCA patients received skin doses of 1 Gy or more.

For CA, all skin doses were well below 1 Gy. Patient skin doses were measured using Kodak EDR2 film for 20 coronary angiography (CA) and 32 percutaneous transluminal coronary angioplasty (PTCA) procedures. Kodak EDR2 film for patient skin dose assessment in cardiac catheterization procedures.

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