Patient doses from medical examinations in Russia: 2009–2015
| Autor: | Irina Zvonova, Svetlana Sarycheva, Aleksandr Vodovatov, Mikhail Balonov, Sergey Kalnitsky, Vladislav Golikov, Larisa Chipiga |
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| Rok vydání: | 2017 |
| Předmět: |
Adult
Time Factors Radiography Radiation Dosage Dental examinations Scintigraphy Effective dose (radiation) Russia 030218 nuclear medicine & medical imaging 03 medical and health sciences Radiation Protection 0302 clinical medicine X ray computed Humans Medicine Fluoroscopy X-ray examinations typical dose Waste Management and Disposal Effective dose medicine.diagnostic_test business.industry Public Health Environmental and Occupational Health Public Health Global Health Social Medicine and Epidemiology General Medicine Collective dose collective dose 030220 oncology & carcinogenesis dose survey Nuclear Medicine Tomography X-Ray Computed business Whole body Nuclear medicine |
| Zdroj: | Journal of Radiological Protection; 38(1), pp 121-139 (2017) |
| ISSN: | 1361-6498 0952-4746 |
| Popis: | The aim of this study was to evaluate adult patient doses in Russia in the context of patient protection. Effective doses from x-ray and nuclear medicine examinations were assessed using two approaches. The first was based on data collection performed by the authors in hospitals in St. Petersburg and other 17 Russian regions. The second approach was to assess mean doses through the collective dose estimated annually within the federal data bank ESKID. In 2015, 203 million examinations were conducted in Russia, i.e. 1.4 examinations per capita. The number of examinations has increased by 35% over the last 10 years. Patient doses from x-ray examinations are strongly dependent on the imaging modality. Mean dose increases by an order of magnitude with each x-ray modality from dental examinations (0.01–0.1 mSv) to radiography (0.1–1 mSv), fluoroscopy and CT (1–10 mSv) and to interventional examinations (more than 10 mSv). Mean doses for x-ray examinations are comparable with that of foreign countries. Scintigraphy examinations with 99mTc are associated with mean doses of 1–5 mSv. Mean doses from PET/CT whole body examinations are 15–25 mSv with similar contributions from CT and radiopharmaceuticals. In nuclear medicine, patient doses are lower compared to other countries. According to ESKID data the collective dose from medical exposure in Russia has decreased from 140 000 man-Sv in 2000 to 77 000 man-Sv in 2015. Medical exposure contributes about 13% into a total collective dose. The maximum contribution was from CT examinations, i.e. 45% in 2015. A range of mean doses between different hospitals was up to two orders of magnitude for radiography and one order of magnitude for CT. In interventional studies, the scatter of individual doses was significant. Significant variations in doses between hospitals and some regions indicate the potential for optimization with the focus on interventional examinations, CT and nuclear medicine examinations combined with CT. |
| Databáze: | OpenAIRE |
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