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S VALUES FOR NEUROIMAGING PROCEDURES ON KOREAN PEDIATRIC AND ADULT HEAD COMPUTATIONAL PHANTOMS
- Source :
- Radiat Prot Dosimetry
- Publication Year :
- 2019
- Publisher :
- Oxford University Press (OUP), 2019.
-
Abstract
- Over the past decades, the application of single-photon emission computed tomography and positron emission tomography in neuroimaging has markedly increased. In the current study, we used a series of Korean computational head phantoms with detailed cranial structures for 6-, 9-, 12-, 15-y-old children and adult and a Monte Carlo transport code, MCNPX, to calculate age-dependent specific absorbed fraction (SAF) for mono-energetic electrons ranging from 0.01 to 4 MeV and S values for seven radionuclides widely used in nuclear medicine neuroimaging for the combination of ten source and target regions. Compared to the adult phantom, the 6-y phantom showed up to 1.7-fold greater SAF (cerebellum < cerebellum) and up to 1.4-fold greater S values (vitreous body < lens) for 123I. The electron SAF data, combined with our previous photon SAF data, will facilitate absorbed dose calculations for various cranial structures in patients undergoing neuroimaging procedures.
- Subjects :
- Paper
Adult
Male
Adolescent
Neuroimaging
Radiation Dosage
01 natural sciences
Imaging phantom
030218 nuclear medicine & medical imaging
03 medical and health sciences
0302 clinical medicine
Republic of Korea
0103 physical sciences
medicine
Humans
Computer Simulation
Radiology, Nuclear Medicine and imaging
In patient
Child
Radiation
Radiological and Ultrasound Technology
medicine.diagnostic_test
Phantoms, Imaging
010308 nuclear & particles physics
business.industry
Public Health, Environmental and Occupational Health
General Medicine
Models, Theoretical
Positron emission tomography
Absorbed dose
Body Burden
Female
Nuclear medicine
business
Head
Monte Carlo Method
Emission computed tomography
Subjects
Details
- ISSN :
- 17423406 and 01448420
- Volume :
- 185
- Database :
- OpenAIRE
- Journal :
- Radiation Protection Dosimetry
- Accession number :
- edsair.doi.dedup.....c3a80ccd35b04833654f083d7683bcb2