Mixing electrons with intensity modulated photon beams to reduce integral dose

Author

Svatos, Michelle ; Rosenman, Julia ; Cullip, Tim ; Verhey, Lynn ; Hughes, John

Author_Institution

Dept. of Radiat. Oncology, California Univ., San Francisco, CA, USA

Volume

3

fYear

2000

fDate

2000

Firstpage

2082

Abstract

A single, well-chosen electron beam, suitably modulated by additional photon beams, can deliver a homogeneous dose to the target while reducing the integral dose to normal tissue. This work compares plans using 21 MeV electrons mixed with modulated photons, with 6 MV intensity modulated photons alone in several configurations. The mixed beam plan achieved a 2-fold reduction in integral dose with little compromise in target homogeneity

Keywords

X-ray applications; dosimetry; electron beam applications; radiation therapy; 21 MeV; 6 MV; additional photon beams; beam modulation; integral dose reduction; intensity modulated photon beams; mixed electron-photon radiotherapy; normal tissue; radiotherapy dosimetry; single well-chosen electron beam; target homogeneity; Biological system modeling; Biomedical applications of radiation; Electromagnetic scattering; Electron beams; Fluctuations; Intensity modulation; Oncology; Optical modulation; Particle scattering; Protons;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2000. Proceedings of the 22nd Annual International Conference of the IEEE

Conference_Location

Chicago, IL

ISSN

1094-687X

Print_ISBN

0-7803-6465-1

Type

conf

DOI

10.1109/IEMBS.2000.900537

Filename

900537