نوع مقاله : مقاله پژوهشی
نویسندگان
گروه مهندسی پرتوپزشکی، دانشکده فنی مهندسی، واحد لاهیجان، دانشگاه آزاد اسلامی، لاهیجان، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
This study aimed to measure the cumulative radiation dose received by a neurointerventional physician in peripheral organs (hands and feet) during cerebral aneurysm angiography procedures. A field-based cross-sectional study was conducted between February 2025 and June 2025 at Imam Hossein Hospital, Tehran, involving fifteen consecutive patients diagnosed with cerebral aneurysm. Thermoluminescent dosimeters (TLD-200GR) were placed at four peripheral sites to record the absorbed dose, while the technical parameters of the angiography system including kVp, mAs, dose–area product (DAP), and fluoroscopy time were simultaneously documented. The results showed that the left hand received the highest radiation exposure (mean ± SD: 79.5 ± 34.3 µSv; maximum: 142 µSv), while the right hand had the lowest (mean ± SD: 18.7 ± 8.0 µSv). The distribution of absorbed dose from highest to lowest was as follows: left hand, left foot, right foot, and right hand. Statistical analysis revealed a strong and significant correlation between fluoroscopy time and the physician’s total body absorbed dose (r = 1.0; p < 0.001), as well as a positive relationship between DAP and radiation exposure. Although ionizing radiation plays a crucial role in diagnosis and therapy, cumulative occupational exposure may lead to late effects such as cancer, cataracts, and genetic damage. Interventional physicians are among the most at-risk healthcare professionals due to their proximity to the radiation field. The findings emphasize the importance of adhering to the ALARA principle, proper use of protective equipment, optimization of fluoroscopy time, continuous radiation safety training, and protocol standardization to minimize exposure and enhance occupational safety. The study’s main limitation was the single-operator design and limited number of procedures, suggesting the need for further large-scale investigations.
کلیدواژهها [English]