Back to Search
Start Over
KOREAN PEDIATRIC AND ADULT HEAD COMPUTATIONAL PHANTOMS AND APPLICATION TO PHOTON SPECIFIC ABSORBED FRACTIONS CALCULATIONS
- Source :
- Radiation Protection Dosimetry. 176:294-301
- Publication Year :
- 2017
- Publisher :
- Oxford University Press (OUP), 2017.
-
Abstract
- In recent decades, applications of single photon emission computed tomography and positron emission tomography in clinical neuroimaging have markedly increased. In this study, we developed a series of Korean computational head phantoms with detailed cranial substructures for 6-, 9-, 12- and 15-year-old children and adult by non-uniformly adjusting a template head phantom to match the Korean standard head dimensions. The Korean head phantoms were coupled with a Monte Carlo transport code to calculate age-dependent specific absorbed fraction (SAF) for the combination of 10 source and target regions and mono-energetic photons ranging from 0.01 to 4 MeV. Compared to the adult phantom, the 6-y phantom showed up to 1.4-fold greater self-absorption SAF (cerebellum) and up to 1.8-fold greater cross-irradiation SAF (cerebellum < eye balls). With addition of electron SAFs in the future, our photon SAF data will facilitate dose calculations for various cranial substructures in patients undergoing cranial neuroimaging procedures.
- Subjects :
- Paper
Adult
Models, Anatomic
Photon
Adolescent
Dose calculation
Monte Carlo method
Single-photon emission computed tomography
Radiation Dosage
Imaging phantom
030218 nuclear medicine & medical imaging
03 medical and health sciences
0302 clinical medicine
Nuclear magnetic resonance
Neuroimaging
Republic of Korea
medicine
Humans
Computer Simulation
Radiology, Nuclear Medicine and imaging
Child
Physics
Photons
Radiation
Radiological and Ultrasound Technology
medicine.diagnostic_test
fungi
Public Health, Environmental and Occupational Health
General Medicine
Positron emission tomography
Positron-Emission Tomography
Body Burden
Head (vessel)
Monte Carlo Method
030217 neurology & neurosurgery
Biomedical engineering
Subjects
Details
- ISSN :
- 17423406 and 01448420
- Volume :
- 176
- Database :
- OpenAIRE
- Journal :
- Radiation Protection Dosimetry
- Accession number :
- edsair.doi.dedup.....550a4277ceedde8aa155eb4dbf3a9a8f