International Journal of Radiation Oncology * Biology * Physics
Volume 72, Issue 1 , Pages 295-299 , 1 September 2008

The Effect of Transponder Motion on the Accuracy of the Calypso Electromagnetic Localization System

  • Martin J. Murphy, Ph.D.

      Affiliations

    • Department of Radiation Oncology, Virginia Commonwealth University, Richmond, VA
    • Corresponding Author InformationReprint requests to: Martin J. Murphy, Ph.D., Department of Radiation Oncology, Virginia Commonwealth University Health System, 401 College Street, P.O. Box 980058, Richmond, VA 23298-0058. Tel: (804) 628-7777; Fax: (804) 628-4709
    • ,
  • Richard Eidens, Ph.D.

      Affiliations

    • Calypso Medical Technologies, Seattle, WA
    • ,
  • Edward Vertatschitsch, Ph.D.

      Affiliations

    • Calypso Medical Technologies, Seattle, WA
    • ,
  • J. Nelson Wright, M.S.

      Affiliations

    • Calypso Medical Technologies, Seattle, WA

Received 20 February 2008 ,Revised 12 May 2008 ,Accepted 14 May 2008.

References 

  1. Kupelian P, Willoughby T, Mahadevan A, et al. Multi-institutional clinical experience with the Calypso System in localization and continuous, real-time monitoring of the prostate gland during external radiotherapy. Int J Radiat Oncol Biol Phys. 2007;67:1088–1098
  2. Balter JM, Wright JN, Newell LJ, et al. Accuracy of a wireless localization system for radiotherapy. Int J Radiat Oncol Biol Phys. 2005;61:933–937
  3. Willoughby TR, Kupelian PA, Pouliot J, et al. Target localization and real-time tracking using the Calypso 4D localization system in patients with localized prostate cancer. Int J Radiat Oncol Biol Phys. 2006;65:528–534
  4. Litzenberg DW, Willoughby TR, Balter JM, et al. Positional stability of electromagnetic transponders used for prostate localization and continuous real-time tracking. Int J Radiat Oncol Biol Phys. 2007;68:1199–1206
  5. Murphy MJ. Tracking moving organs in real time. Semin Radiat Oncol. 2004;14:91–100
  6. Shirato H, Suzuki K, Sharp GC, et al. Speed and amplitude of lung tumor motion precisely detected in four-dimensional setup and in real-time tumor-tracking radiotherapy. Int J Radiat Oncol Biol Phys. 2006;64:1229–1236
  7. Murphy MJ, Jalden J, Isaksson M. Adaptive filtering to predict lung tumor breathing motion during image-guided radiation therapy. In:  Lemke HU,  Vannier MW,  Inamura K editor. CARS 2002. Computer-assisted radiology and surgery: Proceedings of the 16th International Congress and Exhibition, Paris, June 26-29, 2002. Berlin: Springer Verlag; 2002;p. 539–544
  8. Sharp GC, Jiang SB, Shimizu S, et al. Prediction of respiratory tumour motion for real-time image-guided radiotherapy. Phys Med Biol. 2004;49:425–440

 Supported in part by National Cancer Institute grant R21CA119143.

 Conflict of interest: R.E., E.V., and J.N.W. are employees of Calypso Medical Technologies.

PII: S0360-3016(08)00926-7

doi: 10.1016/j.ijrobp.2008.05.036

International Journal of Radiation Oncology * Biology * Physics
Volume 72, Issue 1 , Pages 295-299 , 1 September 2008

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