Organ dose and effective dose estimation in paediatric chest radiographic examinations by using pin silicon photodiode dosemeters
| Autor: | Shuji Koyama, Keisuke Fujii, Takahiko Aoyama, Toshio Kawasaki, Chiyo Yamauchi-Kawaura |
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| Rok vydání: | 2012 |
| Předmět: |
Silicon
medicine.medical_specialty Radiography Silicon photodiode Radiation Dosage Pediatrics Sensitivity and Specificity Effective dose (radiation) Photometry medicine Humans Radiology Nuclear Medicine and imaging Child Radiometry Radiation Radiological and Ultrasound Technology business.industry Public Health Environmental and Occupational Health Reproducibility of Results Equipment Design General Medicine Equipment Failure Analysis Semiconductors Organ Specificity Body Burden Radiography Thoracic Anthropomorphic phantom Radiology business Nuclear medicine |
| Zdroj: | Radiation Protection Dosimetry. 154:314-319 |
| ISSN: | 1742-3406 0144-8420 |
| DOI: | 10.1093/rpd/ncs251 |
| Popis: | Organ and effective doses during paediatric chest radiographic examination were investigated for various tube voltages between 60 and 110 kV at a constant milliampere-second value and focus-to-film distance by using an in-phantom dose measuring system and a Monte Carlo (MC) simulation software (PCXMC), where the former was composed of 32 photodiode dosemeters embedded in various tissue and organ sites within a 6-y-old child anthropomorphic phantom. Lung doses obtained ranged from 0.010 to 0.066 mGy and effective doses from 0.004 to 0.025 mSv, where these doses varied by a factor of 6 with the change in the tube voltage. Effective doses obtained using the MC simulation software agreed with those obtained using the dose measuring system within 23 %, revealing the usefulness of PCXMC software for evaluating effective doses. The present study would provide helpful dose data for the selection of technical parameters in paediatric chest radiography in Japan. |
| Databáze: | OpenAIRE |
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