Portuguese study of mean glandular dose in mammography and comparison with European references
| Autor: | Joao G. Alves, Mário João Fartaria, Ana Pascoal, Cláudia Reis |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Adult
Digital mammography Context (language use) Reference range Radiation Dosage 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Reference Values medicine Humans Mammography Radiology Nuclear Medicine and imaging Breast Aged Radiation Portugal Radiological and Ultrasound Technology medicine.diagnostic_test Phantoms Imaging business.industry Public Health Environmental and Occupational Health General Medicine Middle Aged European guidelines Europe 030220 oncology & carcinogenesis Western europe Reference values Female Mean glandular dose Nuclear medicine business Healthcare providers |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| ISSN: | 1742-3406 0144-8420 |
| DOI: | 10.1093/rpd/ncx300 |
| Popis: | To characterise the mean glandular dose (MGD) in a sample of healthcare providers for digital mammography in Portugal. To compare the achieved values with European references. The MGD was measured on a poly-methyl-methacrylate phantom (45 mm) for each system using dosimeters. In addition, MGD was estimated using exposure settings collected from mammography exams in clinical context. Data were collected from 25 computed-radiography systems (CR) and 13 integrated digital (DR). For both measurements (phantom and clinical exposures), the average MGD for CR was higher compared to the DR. For CR the mean MGD was 1.85 mGy (CC projection) and 2.10 mGy (MLO projection). For DR systems the corresponding values were 1.54 mGy (CC) and 1.68 mGy (MLO). The average MGD obtained using both methods and for both technologies is within the acceptable reference range proposed by European guidelines (< 2.5 mGy). Dose Reference Levels implementation should be the next step to optimise mammography practice in Portugal. |
| Databáze: | OpenAIRE |
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