Eye lens dose correlations with personal dose equivalent and patient exposure in paediatric interventional cardiology performed with a fluoroscopic biplane system
| Autor: | José Bayón, A. Serrada, C. Koren, Eduardo Guibelalde, F. Sánchez, Luis Alejo, E. Corredoira |
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| Rok vydání: | 2017 |
| Předmět: |
medicine.medical_specialty
Optically stimulated luminescence Cardiology Biophysics General Physics and Astronomy Radiology Interventional Radiation Dosage Biplane 030218 nuclear medicine & medical imaging 03 medical and health sciences Radiation Protection 0302 clinical medicine Surveys and Questionnaires Lens Crystalline Humans Medicine Radiology Nuclear Medicine and imaging Child Eye lens Dosimeter Interventional cardiology business.industry Equivalent dose General Medicine Patient exposure Radiation Exposure Fluoroscopy 030220 oncology & carcinogenesis Calibration Radiology Radiation protection business Nuclear medicine |
| Zdroj: | Physica Medica. 36:81-90 |
| ISSN: | 1120-1797 |
| DOI: | 10.1016/j.ejmp.2017.03.015 |
| Popis: | Purpose To analyse the correlations between the eye lens dose estimates performed with dosimeters placed next to the eyes of paediatric interventional cardiologists working with a biplane system, the personal dose equivalent measured on the thorax and the patient dose. Methods The eye lens dose was estimated in terms of H p (0.07) on a monthly basis, placing optically stimulated luminescence dosimeters (OSLDs) on goggles. The H p (0.07) personal dose equivalent was measured over aprons with whole-body OSLDs. Data on patient dose as recorded by the kerma-area product ( P KA ) were collected using an automatic dose management system. The 2 paediatric cardiologists working in the facility were involved in the study, and 222 interventions in a 1-year period were evaluated. The ceiling-suspended screen was often disregarded during interventions. Results The annual eye lens doses estimated on goggles were 4.13 ± 0.93 and 4.98 ± 1.28 mSv. Over the aprons, the doses obtained were 10.83 ± 0.99 and 11.97 ± 1.44 mSv. The correlation between the goggles and the apron dose was R 2 = 0.89, with a ratio of 0.38. The correlation with the patient dose was R 2 = 0.40, with a ratio of 1.79 μSv Gy −1 cm −2 . The dose per procedure obtained over the aprons was 102 ± 16 μSv, and on goggles 40 ± 9 μSv. The eye lens dose normalized to P KA was 2.21 ± 0.58 μSv Gy −1 cm −2 . Conclusions Measurements of personal dose equivalent over the paediatric cardiologist’s apron are useful to estimate eye lens dose levels if no radiation protection devices are typically used. |
| Databáze: | OpenAIRE |
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