Radiobiological basis and clinical results of the simultaneous integrated boost (SIB) in intensity modulated radiotherapy (IMRT) for head and neck cancer: A review

Ester Orlandi, Mauro Palazzi, Emanuele Pignoli, Carlo Fallai, Antonella Giostra, Patrizia Olmi

Research output: Contribution to journalArticlepeer-review

Abstract

The simultaneous integrated boost (SIB)-IMRT technique allows the simultaneous delivery of different dose levels to different target volumes within a single treatment fraction. The most significant aspect associated with SIB-IMRT is related to the fractionation strategy, concerning two time-dose parameters: (1) the shortening of the overall treatment time (OTT); (2) the increase of fraction size (FS) to the boost volume. The SIB-IMRT technique represents, therefore, a new way to investigate the accelerated fractionation in definitive treatment of head and neck (H&N) cancers. The aims of this paper are the following: (1) to briefly review the influence of OTT and FS on H&N tumors and on acutely and late responding normal tissues; (2) to review the results of clinical studies of accelerated radiotherapy not employing IMRT in H&N cancer; (3) to review the clinical experiences of the SIB-IMRT technique and to compare the different SIB regimes in terms of radiobiological efficacy.

Original languageEnglish
Pages (from-to)111-125
Number of pages15
JournalCritical Reviews in Oncology/Hematology
Volume73
Issue number2
DOIs
Publication statusPublished - Feb 2010

Keywords

  • Accelerated fractionation
  • Head and neck cancer
  • Radiobiological efficacy
  • SIB-IMRT technique

ASJC Scopus subject areas

  • Oncology
  • Hematology
  • Geriatrics and Gerontology

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