Naslov
CONVERSION FACTORS BETWEEN KERMA-AREA PRODUCT AND EFFECTIVE/ORGAN DOSE FOR CARDIAC INTERVENTIONAL FLUOROSCOPY PROCEDURES

Autori
Kuchcinska, Ms Agnieszka ; D’Alessio, Mr Andrea ; Segota, Ms Doris ; Sukupova, Ms Lucie ; Brambilla, Marco

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Physica Medica: Abstracts of the 4th European Congress of Medical Physics / - : Elsevier, 2022, S71-S71

Skup
4th European Congress of Medical Physics

Mjesto i datum
Dublin, Irska, 17.08.2022. - 20.08.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
effetive dose, organ dose, kerma-area product, conversion factors, interventional cardiology

Sažetak
Purpose: The aim of this study is to lead a critical appraisal of the evidence concerning the conversion factors between kerma-area product (PKA) and effective/organ dose (DCED_PKA, DCHT_PKA) for cardiac interventional fluoroscopy procedures performed in adults and paediatric patients and to propose reference conversion factors to help standardize dose calculations.Methods: A systematic review of the published literature was lead with a time restriction (since January 2007) to capture the evolving trends of utilization of fluoroscopy-guided intervention technologies only in recent years. The suggested DCED_PKA and DCHT_PKA were synthesized by calculating the weighted averages of the values reported by the authors with weights corresponding to the study sample size.Results: Eighteen studies for both adult (9) and paediatric (9) patients matching the search terms fulfilled the inclusion criteria. The suggested value for DCED_PKA in adult patients amounts to 0.24 mSvGy-1cm-2. The suggested values for DCHT_PKA ranged from a minimum of 0.15 mSvGy-1cm-2 for the female breast to a maximum of 0.97 mSvGy-1cm-2 for the lungs. The suggested values for DCED_PKA in paediatric patients ranged from 3.45 mSvGy-1cm-2 for the new-born to 0.49 mSvGy-1cm-2 in the 15-years age class.The suggested values for DCHT_PKA ranged from a minimum of 0.33 mSvGy-1cm-2 for bone marrow in the 15-years age class to a maximum of 11.49 mSvGy-1cm-2 for the heart in the new-born.Discussion: The value of 0.24 mSvGy-1cm-2 for DCED_PKA in adult patients is consistently higher than the most often quoted value of 0.18 mSv Gy-1 cm-2. The increase in DCED_PKA can be partially explained by the changes in the tissue weighting factors between ICRP 103 and ICRP 60 and by the different X-ray beam quality used in modern angiographic equipment with respect to older machines equipped with image intensifiers.The values obtained of DCED_PKA can be useful for standardizing dose calculations, hence for comparison of the radiation detriment from different imaging procedures. Having a reliable set of DCHT_PKA could prove to be very useful in the framework of epidemiologic studies.

Izvorni jezik
Engleski

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