Evaluation of organ doses in CT examinations with an infant anthropomorphic phantom
| Autor: | T. Horiuchi, Toshio Kawasaki, O. Miyazaki, Keiichi Akahane, A. Shimada, Keisuke Fujii, H. Nagmatsu, M Yamauchi, Chiyo Yamauchi-Kawaura |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
medicine.medical_specialty
Tomography Scanners X-Ray Computed Adolescent Radiography Chest ct Radiation Dosage Pelvis X ray computed medicine Humans Radiology Nuclear Medicine and imaging Child Radiometry CT protocol Radiation Anthropometry Radiological and Ultrasound Technology Phantoms Imaging business.industry Public Health Environmental and Occupational Health Infant General Medicine Multicenter study Child Preschool Ct scanners Body Burden Radiography Thoracic Anthropomorphic phantom Radiology Tomography Tomography X-Ray Computed business Head |
| Zdroj: | Radiation Protection Dosimetry. 147:151-155 |
| ISSN: | 1742-3406 0144-8420 |
| DOI: | 10.1093/rpd/ncr289 |
| Popis: | The aim of this study is to evaluate organ doses in infant CT examinations with multi-detector row CT scanners. Radiation doses were measured with radiophotoluminescence glass dosemeters set in various organ positions within a 1-y-old child anthropomorphic phantom and organ doses were evaluated from the measurement values. Doses for tissues or organs within the scan range were 28-36 mGy in an infant head CT, 3-11 mGy in a chest CT, 5-11 mGy in an abdominal-pelvic CT and 2-14 mGy in a cardiac CT. The doses varied by the differences in the types of CT scanners and scan parameters used at each medical facility. Compared with those for children of various ages, the doses in an infant CT protocol were found to be similar to or slightly smaller than those in a paediatric CT for 5- or 6-y-old children. |
| Databáze: | OpenAIRE |
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