title: Organ dose and effective dose estimation in paediatric chest radiographic examinations by using pin silicon photodiode dosemeters.
abstract: 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.
authors.affiliation: Department of Radiological Technology, Kanagawa Children's Medical Center, Mutsukawa 2-138-4, Minami-ku, Yokohama 232-8555, Japan. t-kawasaki@c3-net.ne.jp
authors.forename: Toshio
authors.initials: T
authors.lastname: Kawasaki
authors.forename: Takahiko
authors.initials: T
authors.lastname: Aoyama
authors.forename: Chiyo
authors.initials: C
authors.lastname: Yamauchi-Kawaura
authors.forename: Keisuke
authors.initials: K
authors.lastname: Fujii
authors.forename: Shuji
authors.initials: S
authors.lastname: Koyama
mesh_terms: D001822:Body Burden; D002648:Child; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D009928:Organ Specificity; D010372:Pediatrics / Q000295:instrumentation*; D010783:Photometry / Q000295:instrumentation*; D011829:Radiation Dosage; D013902:Radiography, Thoracic / Q000295:instrumentation*; D011874:Radiometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012666:Semiconductors; D012680:Sensitivity and Specificity; D012825:Silicon / Q000528:radiation effects
chemical_list: D012825:Silicon