Monte Carlo evaluation of occupational exposure during uterine artery embolization
| Autor: | Otávio J. Tavares, Daniela Cristina de Oliveira Silva, Lucio P. Neves, Samara P. Souza, Ana P. Perini, Lucas W.G. Souza, Walmir Belinato, Monique França e Silva, William S. Santos |
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| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Uterine fibroids medicine.medical_treatment Biophysics General Physics and Astronomy Radiation Dosage 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Uterine artery embolization Occupational Exposure Humans Medicine Dosimetry Fluoroscopy Computer Simulation Radiology Nuclear Medicine and imaging Monte carlo evaluation medicine.diagnostic_test Phantoms Imaging business.industry Stomach Interventional radiology General Medicine Uterine Artery Embolization medicine.disease medicine.anatomical_structure 030220 oncology & carcinogenesis Female Radiology Bone marrow business Monte Carlo Method |
| Zdroj: | Physica Medica. 85:50-56 |
| ISSN: | 1120-1797 |
| Popis: | Purpose Uterine fibroids affect women mainly of childbearing age, an alternative for the treatment of these fibroids is uterine artery embolization (UAE), a minimally invasive procedure which uses fluoroscopy, providing radiation doses often high, due to the fact that professionals remain in the room throughout the procedure. In this work, equivalent and effective doses were evaluated for the main physician, for the assistant and for the patient during the UAE procedure. Methods Doses were calculated using computer simulation with the Monte Carlo Method, and virtual anthropomorphic phantoms, in a typical scenario of interventional radiology with field sizes of 20 × 20, 25 × 25 and 32 × 32 cm2, tube voltages of 70, 80, 90 and 100 kV, and projections of LAO45, RAO45 and PA. Results The results showed that the highest doses received by the professionals were for the LAO45 projection with 32 × 32 cm2 field size and 100 kV tube voltage, which is in accordance with the existing literature. The highest equivalent doses, without the protective equipment, were in the eyes, skin, breast and stomach for the main physician, and for the assistant they were in the eyes, breast, thyroid and skin. When she used the protective equipment, the highest equivalent doses for the main physician were on the skin, brain, bone marrow and bone surface, and for the assistant they were on the skin, brain, red bone marrow and bone surface. Conclusions Effective doses increased up to 3186% for the main physician, and 2462% for the assistant, without protective equipment, thus showing their importance. |
| Databáze: | OpenAIRE |
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