Megavoltage CT images of helical tomotherapy unit for radiation treatment simulation: Impact on feasibility of treatment planning in a prostate cancer patient with bilateral femoral prostheses

Filippo Alongi, Andrei Fodor, Angelo Maggio, Cesare Cozzarini, Claudio Fiorino, Sara Broggi, Pierpaolo Alongi, Riccardo Calandrino, Nadia Di Muzio

Research output: Contribution to journalArticle

Abstract

Metal prosthesis artefacts on CT images can be a significant problem in the definition of volumes of interest, dose calculation and patient setup in modern radiotherapy. We experienced considerable difficulties in defining the organs at risk and treatment volumes on kVCT images of standard CT simulation in a prostate cancer patient due to the presence of bilateral femoral prostheses causing artefacts. As shown in the current case, MVCT images of the patient in the treatment position obtained using a helical tomotherapy unit can provide sufficient morphological information to define the pelvic anatomic structures for radical prostate treatment planning. The patient completed the planned treatment and at 90 days after the end of treatment no severe side effects were recorded. Since there have been few reports on the use of MVCT images to overcome the problem of hip prosthesis artefacts, a brief literature review was also carried out.

Original languageEnglish
Pages (from-to)221-224
Number of pages4
JournalTumori
Volume97
Issue number2
Publication statusPublished - Mar 2011

Keywords

  • Hip prosthesis
  • MVCT
  • Planning
  • Prostate
  • Tomotherapy

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

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