FDTD analysis of body-core temperature elevation in children and adults for whole-body exposure

Physics in Medicine and Biology
Akimasa HirataOsamu Fujiwara

Abstract

The temperature elevations in anatomically based human phantoms of an adult and a 3-year-old child were calculated for radio-frequency whole-body exposure. Thermoregulation in children, however, has not yet been clarified. In the present study, we developed a computational thermal model of a child that is reasonable for simulating body-core temperature elevation. Comparison of measured and simulated temperatures revealed thermoregulation in children to be similar to that of adults. Based on this finding, we calculated the body-core temperature elevation in a 3-year-old child and an adult for plane-wave exposure at the basic restriction in the international guidelines. The body-core temperature elevation in the 3-year-old child phantom was 0.03 degrees C at a whole-body-averaged specific absorption rate of 0.08 W kg(-1), which was 35% smaller than in the adult female. This difference is attributed to the child's higher body surface area-to-mass ratio.

References

Aug 11, 1975·The Journal of Membrane Biology·C E Stirling
Nov 1, 1976·IEEE Transactions on Bio-medical Engineering·R G GordonS M Horvath
Feb 1, 1987·Pflügers Archiv : European journal of physiology·K MatsumuraT Kaminaga
Jun 1, 1988·IEEE Transactions on Bio-medical Engineering·M Hoque, O P Gandhi
Dec 1, 1971·International Journal of Biometeorology·E R NadelJ A Stolwijk
May 1, 1970·American Journal of Physical Anthropology·D F RobertsJ O Willson
Dec 1, 1968·Nihon eiseigaku zasshi. Japanese journal of hygiene·S FujimotoK Morimoto
Nov 1, 1983·IEEE Transactions on Bio-medical Engineering·I Chatterjee, O P Gandhi
Jan 1, 1980·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·O Bar-OrH Zonder
May 1, 1996·Physics in Medicine and Biology·A KotteJ Lagendijk
Jan 1, 1995·European Journal of Applied Physiology and Occupational Physiology·K Tsuzuki-HayakawaT Ohnaka
Jun 1, 1996·Micron : the International Research and Review Journal for Microscopy·J C Stockert, G E Bertolesi
Sep 12, 2002·Physics in Medicine and Biology·P J Dimbylow
Nov 25, 2003·Bioelectromagnetics·Eleanor R Adair, David R Black
Mar 3, 2004·Biomedical Engineering Online·Kenneth R Foster, Eleanor R Adair
May 1, 1942·The Journal of Clinical Investigation·M W Johnston, L H Newburgh
Aug 17, 2006·Physics in Medicine and Biology·Jianqing WangSoichi Watanabe
Aug 19, 2006·IEEE Transactions on Bio-medical Engineering·Akimasa HirataToshiyuki Shiozawa
Nov 18, 2006·Physics in Medicine and Biology·R P Findlay, P J Dimbylow
Aug 1, 1948·Journal of Applied Physiology·H H PENNES

❮ Previous
Next ❯

Citations

Jun 24, 2014·IEEE Transactions on Bio-medical Engineering·Serena FiocchiPaolo Ravazzani
Feb 23, 2010·IEEE Transactions on Bio-medical Engineering·Akimasa HirataOsamu Fujiwara
May 16, 2013·International Journal of Hyperthermia : the Official Journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group·Margarethus M PaulidesGerard C Van Rhoon
Mar 31, 2017·International Journal of Environmental Research and Public Health·Sachiko KoderaSoichi Watanabe
Jan 29, 2010·Physics in Medicine and Biology·T UusitupaK Nikoskinen
Nov 15, 2011·Physics in Medicine and Biology·Ilkka Laakso, Akimasa Hirata
Mar 6, 2013·Physics in Medicine and Biology·David A NelsonJohn M Ziriax
Jan 10, 2018·Biomedical Engineering Online·Sachiko KoderaAkimasa Hirata
Dec 19, 2019·International Journal of Environmental Research and Public Health·Toshiki KamiyaAkimasa Hirata
Apr 4, 2021·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Shaihan J MalikJoseph V Hajnal

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.