Doppler radar respiration measurement for gated lung cancer radiotherapy

Changzhan Gu, Ruijiang Li, Changzhi Li, Steve B. Jiang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Scopus citations

Abstract

Respiration-gated radiation therapy is a promising treatment modality that precisely delivers prescribed radiation dose to the lung tumor while minimizing the incidence and severity of normal tissue complications. Conventional gating techniques either rely on implanted fiducial markers or external surrogates such as markers placed on patients' abdomen. They are either invasive to the patients or do not have sufficient accuracy. In this paper, we present a non-contact Doppler radar method to non-invasively measure the respiration signals, from which, accurate gating signals can be derived to control the linac. No marker is needed in our method, which makes it very convenient in use. We measured the respiration using a 5.8 GHz quadrature radar. Analysis of the measured signal is presented. It has been shown that the non-contact means of respiration measurement is able to supply reliable breathing motions and accurate gating signals for radiotherapy of mobile tumors.

Original languageEnglish (US)
Title of host publication2011 IEEE Radio and Wireless Week, RWW 2011 - 2011 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems, BioWireleSS 2011
Pages91-94
Number of pages4
DOIs
StatePublished - Mar 31 2011
Event2011 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems, BioWireleSS 2011 - Phoenix, AZ, United States
Duration: Jan 16 2011Jan 19 2011

Publication series

Name2011 IEEE Radio and Wireless Week, RWW 2011 - 2011 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems, BioWireleSS 2011

Other

Other2011 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems, BioWireleSS 2011
CountryUnited States
CityPhoenix, AZ
Period1/16/111/19/11

Keywords

  • Doppler radar
  • Lung cancer
  • Mobile tumor
  • Non-contact
  • Radiotherapy
  • Respiratory gating

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Biomedical Engineering
  • Electrical and Electronic Engineering

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