Immobilization devices for intensity-modulated radiation therapy (IMRT)

Cheng B. Saw, Richard Yakoob, Charles A. Enke, Thuy P. Lau, Komanduri M. Ayyangar

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


Three-dimensional conformal radiation therapy (3DCRT) and intensity-modulated radiation therapy (IMRT) plans show radiation dose distribution that is highly conformal to the target volume. The successful clinical implementation of these radiotherapy modalities requires precise positioning of the target to avoid a geographical miss. Effective reduction in target positional inaccuracies can be achieved with the proper use of immobilization devices. This paper reviews some of the immobilization devices that have been used and/or have the potential of being used for IMRT. The immobilization devices being reviewed include stereotactic frame, Talon system, thermoplastic molds, Alpha Cradles, and Vac-Lok system. The implementation of these devices at various anatomical sites is discussed.

Original languageEnglish (US)
Pages (from-to)71-77
Number of pages7
JournalMedical Dosimetry
Issue number1
StatePublished - 2001


  • IMRT
  • Immobilization
  • Intensity-modulated radiotherapy
  • Radiotherapy
  • Stereotactic frame

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Oncology
  • Radiology Nuclear Medicine and imaging


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