Adaptive radiation therapy (ART) strategies using helical tomotherapy

Gustavo Hugo Olivera, Thomas Rockwell Mackie, Kenneth Ruchala, Weiguo Lu, Jeffrey Kapatoes

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Scopus citations

Abstract

Tomotherapy is intensity-modulated rotational radiotherapy utilizing a photon fan beam [1-6]. In helical tomotherapy the gantry and couch are in continuous motion and, from the patient's point of view, the source describes a helical trajectory. Helical tomotherapy was designed around a ring gantry similar to a helical CT scanner. The constraints of a ring gantry are minimal since few patients are treated with non-coplanar radiation fields and IMRT diminishes the need for these types of field arrangements. Most importantly, a ring gantry is a very stable platform for CT scanning. The original helical tomotherapy concept had kV and MV beams for imaging and treatment respectively [1]. On the current version megavoltage photons from the treatment linac are used to generate the CT scans [7,8]. The same detector canalsobeused todetect the exiting treatmentbeam in order to provide the data for dose reconstruction [9].

Original languageEnglish (US)
Title of host publicationImage-Guided IMRT
PublisherSpringer Berlin Heidelberg
Pages235-246
Number of pages12
ISBN (Print)354020511X, 9783540205111
DOIs
Publication statusPublished - 2006

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ASJC Scopus subject areas

  • Medicine(all)

Cite this

Olivera, G. H., Mackie, T. R., Ruchala, K., Lu, W., & Kapatoes, J. (2006). Adaptive radiation therapy (ART) strategies using helical tomotherapy. In Image-Guided IMRT (pp. 235-246). Springer Berlin Heidelberg. https://doi.org/10.1007/3-540-30356-1_19