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

Physics in Medicine and Biology

Volumn 53, Issue 18, 2008, Pages 5223-5238

  Hirata, Akimasa ^a   Asano, Takayuki ^a   Fujiwara, Osamu ^a  

^a NAGOYA INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

ABSORPTION; CLARIFICATION; ELECTROMAGNETIC FIELD EFFECTS;

CORE TEMPERATURE; FDTD ANALYSIS; HUMAN PHANTOMS; PLANE WAVES; RADIO FREQUENCIES; SPECIFIC ABSORPTION RATE; THERMAL MODELLING; WHOLE-BODY;

MAGNETIC FIELD EFFECTS;

ANALYTIC METHOD; ARTICLE; BODY MASS; BODY SURFACE; BODY TEMPERATURE; CORE TEMPERATURE; GROUPS BY AGE; PEDIATRICS; PHANTOM; PRACTICE GUIDELINE; PRIORITY JOURNAL; RADIATION EXPOSURE; RADIOFREQUENCY RADIATION; SIMULATION; STRUCTURE ACTIVITY RELATION; THEORETICAL MODEL; THERMOREGULATION; WHOLE BODY RADIATION;

ADULT; BODY TEMPERATURE; CHILD, PRESCHOOL; COMPUTER SIMULATION; DOSE-RESPONSE RELATIONSHIP, RADIATION; HUMANS; MODELS, BIOLOGICAL; RADIATION DOSAGE; RADIO WAVES; WHOLE-BODY IRRADIATION;

EID: 51849134451     PISSN: 00319155     EISSN: 13616560     Source Type: Journal    
DOI: 10.1088/0031-9155/53/18/025     Document Type: Article

References (50)

1. Adair E R and Black D R 2003 Thermoregulatory responses to RF energy adsorption Bioelectromagnetics 6 S17-S23
2. Adair E R, Cobb B L, Mylacraine K S and Kelleher S A 1999 Human exposure at two radio frequencies (450 and 2450 MHz): similarities and differences in physiological response Bioelectromagnetics 20 (Suppl. 4) 12-20
3. Adair E R, Kelleher S A, Mack G W and Morocco T S 1998 Thermophysiological responses of human volunteers during controlled whole-body radio frequency exposure at 450 MHz Bioelectromagnetics 19 232-45
4. American Conference of Government Industrial Hygienists (ACGIH) 1996 Threshold limit values for chemical substances and physical agents and biological exposure indices (Cincinnati, OH)
5. Bar-Or O, Dotan R, Inbar O, Rotshtein A and Zonder H 1980 Voluntary hypohydration in 10 to 12 year old boys J. Appl. Physiol. 48 104-8
6. Bernardi P, Cavagnaro M, Pisa S and Piuzzi E 2003 Specific absorption rate and temperature elevation in a subject exposed in the far-field of radio-frequency sources operating in the 10-900-MHz range IEEE Trans. Biomed. Eng. 50 295-304
7. Chatterjee I and Gandhi O P 1983 An inhomogeneous thermal block model of man for the electromagnetic environment IEEE Trans. Biomed. Eng. 30 707-15
8. Conil E, Hadjem A, Lacroux, Wong M F and Wiart J 2008 Variability analysis of SAR from 20 MHz to 2.4 GHz for different adult and child models using finite-difference time-domain Phys. Med. Biol. 53 1511-25
9. Cooper T E and Trezek G J 1971 Correlation of thermal properties of some human tissue with water content Aerospace Med. 50 24-7
10. Dimbylow P J 1997 FDTD calculations of the whole-body averaged SAR in an anatomically realistic voxel model of the human body from 1 MHz to 1 GHz Phys. Med. Biol. 42 479-90
11. Dimbylow P J 2002 Fine resolution calculations of SAR in the human body for frequencies up to 3 GHz Phys. Med. Biol. 47 2835-46
12. Ebert S, Eom S J, Schuderer J, Spostel U, Tillmann T, Dasenbrock C and Kuster N 2005 Response, thermal regulatory threshold of restrained RF-exposed mice at 905 MHz Phys. Med. Biol. 50 5203-15
13. Fanaroff A A, Wald M, Gruber H S and Klaus M H 1972 Insensible water loss in low birth weight infants Pediatrics 50 236-45
14. Fiala D, Lomas K J and Stohrer M 1999 A computer model of human thermoregulation for a wide range of environmental conditions: the passive system J. Appl. Physiol. 87 1957-72
15. Fiala D, Lomas K J and Stohrer M 2001 Computer prediction of human thermoregulation and temperature responses to a wide range of environmental conditions Int. J. Biometeorol. 45 143-59
16. Findlay R P and Dimbylow P J 2006 Variations in calculated SAR with distance to the perfectly matched layer boundary for a human voxel model Phys. Med. Biol. 51 N411-5
17. Follow B and Neil E 1971 Circulation (New York: Oxford University Press)
18. Foster K R and Adair E R 2004 Modeling thermal responses in human subjects following extended exposure to radiofrequency energy Biomed. Eng. Online 3 4
19. Fujimoto S, Watanabe T, Sakamoto A, Yukawa K and Morimoto K 1968 Studies on the physical surface area of Japanese: 18. Calculation formulas in three stages over all ages Nippon Eiseigaku Zasshi 23 443-50 (in Japanese)
20. Gabriel C 1996 Compilation of the dielectric properties of body tissues at RF and microwave frequencies Final Technical Report on Occupational and Environmental Health Directorate AL/OE-TR-1996-0037 (Brooks Air Force Base, TX: RFR Division)
21. Gordon R G, Roemer R B and Horvath S M 1976 A mathematical model of the human temperature regulatory system-transient cold exposure response IEEE Trans. Biomed. Eng. 23 434-44
22. Hardy J D and DuBois E F 1938 Basal metabolism, radiation, convection, and vaporization at temperatures of 22-35°C J. Nutr. 15 477
23. Hirata A, Asano T and Fujiwara O 2007a FDTD analysis of human body-core temperature elevation due to RF far-field energy prescribed in ICNIRP guidelines Phys. Med. Biol. 52 5013-23
24. Hirata A, Fujiwara O and Shiozawa T 2006a Correlation between peak spatial-average SAR and temperature increase due to antennas attached to human trunk IEEE Trans. Biomed. Eng. 53 1658-64
25. Hirata A, Kodera S, Wang J and Fujiwara O 2007b Dominant factors influencing whole-body average SAR due to far-field exposure in whole-body resonance frequency and GHz regions Bioelectromagnetics 28 484-7
26. Hirata A, Sugiyama H, Kojima M, Kawai H, Yamashiro Y, Fujiwara O, Watanabe S and Sasaki K 2008 Computational model for calculating body-core temperature elevation in rabbits due to whole-body exposure at 2.45 GHz Phys. Med. Biol. 3391-404
27. Hirata A, Watanabe S, Kojima M, Hata I, Wake K, Taki M, Sasaki K, Fujiwara O and Shiozawa T 2006b Computational verification of anesthesia effect on temperature variations in rabbit eyes exposed to 2.45-GHz microwave energy Bioelectromagnetics 27 602-12
28. Hoque M and Gandhi O P 1988 Temperature distribution in the human leg for VLF-VHF exposure at the ANSI recommended safety levels IEEE Trans. Biomed. Eng. 35 442-9
29. Ibrahiem A, Dale C, Tabbara W and Wiart J 2005 Analysis of the temperature increase linked to power induced by RF source Prog. Electromagn. Res. 52 23-46
30. International Commission on Radiological Protection (ICRP) 1975 Report of the Task Group on Reference Man vol 23 (Oxford: Pergamon)
31. International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1998 Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300 GHz) Health Phys. 74 494-522
32. Karslake D De K 1972 The Stress of Hot Environment (London: Cambridge University Press)
33. Kotte A, van Leeuwen G, de Bree J, van der Koijk J, Crezee H and Lagendijk J 1996 A description of discrete vessel segments in thermal modeling of tissues Phys. Med. Biol. 41 865-84
34. Lee D H K 1977 Handbook of Physiology: Sec. 9: Reactions to Environmental Agents (MD: American Physiological Society)
35. Margaret W, Johnston W and Newburgh L H 1942 Calculation of heat production from insensible loss of weight J. Clin. Invest. 21 357-63
36. McLaren C, Null J and Quinn J 2005 Heat stress from enclosed vehicles: moderate ambient temperatures cause significant temperature rise in enclosed vehicles Pediatrics 116 e109-12
37. Nagaoka T, Horise S, Fukuda K, Kunieda E, Wang J, Fujiwara O and Watanabe S 2005 Development of the child voxel models by transforming the adult voxel model IEICE Technical Report EMCJ2005-26
38. Nagaoka T, Watanabe S, Sakurai K, Kunieda E, Watanabe S, Taki M and Yamanaka Y 2004 Development of realistic high-resolution whole-body voxel models of Japanese adult males and females of average height and weight, and application of models to radio-frequency electromagnetic-field dosimetry Phys. Med. Biol. 49 1-15
39. Nakayama T and Iriki M 1987 Handbook of Physiological Science: vol 18. Physiology of Energy Exchange and Thermoregulation (Tokyo: Igaku-Shoin)
40. Pennes H H 1948 Analysis of tissue and arterial blood temperatures in resting forearm J. Appl. Physiol. 1 93-122
41. Roberts D F, Salzano F M and Willson J O C 1970 Active sweat gland distribution in caingang Indians Am. J. Phys. Anthrop. 32 395-400
42. Samaras T, Christ A and Kuster N 2006 Effects of geometry discretization aspects on the numerical solution of the bioheat transfer equation with the FDTD technique Phys. Med. Biol. 51 221-9
43. Spiegel R J 1984 A review of numerical models for predicting the energy deposition and resultant thermal response of humans exposed to electromagnetic fields IEEE Trans. Microw. Theory Tech. 32 730-46
44. Stolwijk J A J 1971 A mathematical model of physiological temperature regulation in man (Washington, DC: NASA) (CR-1855)
45. Stulyok E, Jequier E and Prodhom L S 1973 Respiratory contribution to the thermal balance of the newborn infant under various ambient conditions Pediatrics 51 641-50
46. Taflove A and Hagness S 2003 Computational Electrodynamics: The Finite-Difference Time-Domain Method 3rd edn (Norwood, MA: Artech House Publishers)
47. Tsuzuki K 1998 Thermoregulation during hot and warm exposures of infants compared to their mothers Japan. Soc. Home Econ. 49 409-15
48. Tsuzuki K, Tochibara Y and Ohnaka T 1995 Thermoregulation during heat exposure of young children compared to their mothers Eur. J. Appl. Physiol. 72 12-7
49. Wang J, Kodera S, Fujiwara O and Watanabe S 2005 FDTD calculation of whole-body average SAR in adult and child models for frequencies from 30 MHz to 3 GHz Phys. Med. Biol. 51 4119-27
50. WHO 2006 http://www.who.int/peh-emf/research/rf_research_agenda_2006.pdf