Advanced

Verification of single beam treatment planning using a ferrous dosimeter gel and MRI (FeMRI)

Bäck, S A LU ; Magnusson, Peter LU ; Olsson, L E LU ; Montelius, A; Fransson, A and Mattsson, S LU (1998) In Acta Oncologica 37(6). p.6-561
Abstract

A method for analysing and comparing treatment planning system (TPS) data and ferrous dosimeter gel measurements evaluated with MRI (FeMRI) was developed, including image processing to final absorbed dose images. Measurements were analysed according to this method and FeMRI data were thereby compared with the TPS-calculated dose distribution. For photons, differences between FeMRI- and TPS dose data were mainly within +/- 2%. Minor shortcomings found in both the FeMRI system and the TPS are explained and discussed. For electron beams, there was an overall good agreement. It was found that the TPS underestimates the lateral scattering dose outside the primary beam, but the reported dose difference corresponds to a small spatial deviation... (More)

A method for analysing and comparing treatment planning system (TPS) data and ferrous dosimeter gel measurements evaluated with MRI (FeMRI) was developed, including image processing to final absorbed dose images. Measurements were analysed according to this method and FeMRI data were thereby compared with the TPS-calculated dose distribution. For photons, differences between FeMRI- and TPS dose data were mainly within +/- 2%. Minor shortcomings found in both the FeMRI system and the TPS are explained and discussed. For electron beams, there was an overall good agreement. It was found that the TPS underestimates the lateral scattering dose outside the primary beam, but the reported dose difference corresponds to a small spatial deviation (less than 2 mm). It is important to consider this single beam data comparison when the method is extended to more complicated situations, for example when using several beams.

(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Ferrous Compounds, Gels, Humans, Magnetic Resonance Imaging, Radiotherapy Dosage, Reproducibility of Results, Sensitivity and Specificity
in
Acta Oncologica
volume
37
issue
6
pages
6 pages
publisher
Taylor & Francis
external identifiers
  • Scopus:0031766191
ISSN
0284-186X
language
English
LU publication?
yes
id
866cd78a-5311-418d-ae62-4b09781b611b
date added to LUP
2016-08-16 12:15:11
date last changed
2016-10-13 05:12:19
@misc{866cd78a-5311-418d-ae62-4b09781b611b,
  abstract     = {<p>A method for analysing and comparing treatment planning system (TPS) data and ferrous dosimeter gel measurements evaluated with MRI (FeMRI) was developed, including image processing to final absorbed dose images. Measurements were analysed according to this method and FeMRI data were thereby compared with the TPS-calculated dose distribution. For photons, differences between FeMRI- and TPS dose data were mainly within +/- 2%. Minor shortcomings found in both the FeMRI system and the TPS are explained and discussed. For electron beams, there was an overall good agreement. It was found that the TPS underestimates the lateral scattering dose outside the primary beam, but the reported dose difference corresponds to a small spatial deviation (less than 2 mm). It is important to consider this single beam data comparison when the method is extended to more complicated situations, for example when using several beams.</p>},
  author       = {Bäck, S A and Magnusson, Peter and Olsson, L E and Montelius, A and Fransson, A and Mattsson, S},
  issn         = {0284-186X},
  keyword      = {Ferrous Compounds,Gels,Humans,Magnetic Resonance Imaging,Radiotherapy Dosage,Reproducibility of Results,Sensitivity and Specificity},
  language     = {eng},
  number       = {6},
  pages        = {6--561},
  publisher    = {ARRAY(0xa0670b0)},
  series       = {Acta Oncologica},
  title        = {Verification of single beam treatment planning using a ferrous dosimeter gel and MRI (FeMRI)},
  volume       = {37},
  year         = {1998},
}