Conformal prostate treatment planning using a low-energy (6-MV) beam

D. A. Wilkinson, C. J. Scicutella, A. Wu, Shalom Kalnicki

Research output: Contribution to journalArticle

Abstract

A 4-field noncoplanar technique for treatment of prostate cancer developed at the University of Michigan was modified for use with low-energy (6 MV) beams. These modifications include the use of wedges on the 2 anterior inferior-superior oblique fields and adjusting the weights of the oblique and lateral fields appropriately. A margin of 1.5 cm around the physician-defined target region was used to define the blocks on each beam's-eye view. Dose distributions produced using this technique with 6-MV and 24-MV beams were compared visually on several dose planes (transverse and sagittal) and quantitatively by dose volume histograms (target, rectum, and bladder). These comparisons showed insignificant differences between the high-energy and low- energy treatment plans. Much larger differences were observed in comparisons of 2 types of coplanar plans with the noncoplanar setup for the 6-MV photon machine. Rectal doses measured in situ were used to help validate the dose distribution predicted by the treatment planning system for the 6-MV noncoplanar technique. (C) 2000 American Association of Medical Dosimetrists.

Original languageEnglish (US)
Pages (from-to)37-40
Number of pages4
JournalMedical Dosimetry
Volume25
Issue number1
DOIs
StatePublished - Mar 2000
Externally publishedYes

Fingerprint

planning
Prostate
dosage
Photons
Rectum
energy
Prostatic Neoplasms
Urinary Bladder
Therapeutics
rectum
physicians
bladder
Physicians
Weights and Measures
histograms
wedges
margins
cancer
adjusting
photons

Keywords

  • Beam energy
  • Conformal
  • Prostate
  • Radiotherapy

ASJC Scopus subject areas

  • Oncology
  • Radiology Nuclear Medicine and imaging
  • Health Professions(all)
  • Radiation

Cite this

Conformal prostate treatment planning using a low-energy (6-MV) beam. / Wilkinson, D. A.; Scicutella, C. J.; Wu, A.; Kalnicki, Shalom.

In: Medical Dosimetry, Vol. 25, No. 1, 03.2000, p. 37-40.

Research output: Contribution to journalArticle

Wilkinson, D. A. ; Scicutella, C. J. ; Wu, A. ; Kalnicki, Shalom. / Conformal prostate treatment planning using a low-energy (6-MV) beam. In: Medical Dosimetry. 2000 ; Vol. 25, No. 1. pp. 37-40.
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