annals of telecommunications - annales des télécommunications

, Volume 63, Issue 1, pp 65–78

SAR characterization inside intracranial tumors for case–control epidemiological studies on cellular phones and RF exposure

Authors

    • Department of Electrical EngineeringTokyo Metropolitan University
    • National Institute of Information and Communications Technology
  • Kanako Wake
    • National Institute of Information and Communications Technology
  • Masao Taki
    • Department of Electrical EngineeringTokyo Metropolitan University
  • Soichi Watanabe
    • National Institute of Information and Communications Technology
  • Toru Takebayashi
    • Department of Preventive Medicine and Public HealthKeio University School of Medicine
  • Naohito Yamaguchi
    • Department of Hygiene and Public HealthTokyo Women’s Medical University
  • Yuriko Kikuchi
    • Department of Preventive Medicine and Public HealthKeio University School of Medicine
Original Paper

DOI: 10.1007/s12243-007-0009-y

Cite this article as:
Varsier, N., Wake, K., Taki, M. et al. Ann. Telecommun. (2008) 63: 65. doi:10.1007/s12243-007-0009-y

Abstract

Epidemiological studies investigating whether mobile phone use is related to cancer risk have been conducted in many countries. The purpose of the work reported here was to introduce the dose metric in the exposure assessment, taking into account the spatial distribution of exposure. Distributions of specific absorption rate (SAR) inside 275 cases of brain tumors (participants in the Japanese epidemiological study) were estimated. Phones had been classified into four categories based on SAR distributions and technical specifications. Results were found to be highly dependent on phone categories. Contralateral tumors were generally categorized as non-exposed tumors (max SAR <2.5% of max SAR in the brain) and, for any phone category, the maximum SAR in 75% of the ipsilateral tumors was less than 15% of the maximum SAR in the brain. Three new exposure indices combining the duration and strength of exposure were created to be used in the Japanese epidemiological study on mobile phone use and the risk of gliomas and meningiomas.

Keywords

SAR characterizationMobile phonesEpidemiological studyBrain tumorsRF exposureCancer risk

Copyright information

© GET and Springer Verlag France 2008