MR imaging of absorbed dose distributions for radiotherapy using ferrous sulphate gels
(1990) In Physics in Medicine and Biology 35(12). p.31-1623- Abstract
The measurement of absorbed dose distributions using dosemeter gel and magnetic resonance imaging (MRI) in a standard geometry has been investigated. Absorbed depth-dose curves and profiles measured with this new technique show good agreement with corresponding measurements using diodes. This was proven in a 60Co beam as well as an electron beam. The dosemeter gel is made of agarose and ferrous sulphate solution. The dose response is linear (r = 0.9996) in the investigated dose interval, 0-40 Gy. The sensitivity is a factor of about six higher compared to ordinary ferrous sulphate solution, known as 'Fricke'. This is a true 3D dose measurement technique which will have a number of applications in radiation therapy, since it is possible... (More)
The measurement of absorbed dose distributions using dosemeter gel and magnetic resonance imaging (MRI) in a standard geometry has been investigated. Absorbed depth-dose curves and profiles measured with this new technique show good agreement with corresponding measurements using diodes. This was proven in a 60Co beam as well as an electron beam. The dosemeter gel is made of agarose and ferrous sulphate solution. The dose response is linear (r = 0.9996) in the investigated dose interval, 0-40 Gy. The sensitivity is a factor of about six higher compared to ordinary ferrous sulphate solution, known as 'Fricke'. This is a true 3D dose measurement technique which will have a number of applications in radiation therapy, since it is possible to mould the gel to arbitrary geometries, mix different radiation qualities and integrate the absorbed dose from different kinds of fields.
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- author
- Olsson, L E LU ; Fransson, A ; Ericsson, A and Mattsson, S LU
- organization
- publishing date
- 1990-12
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Dose-Response Relationship, Radiation, Ferrous Compounds, Gels, Humans, Magnetic Resonance Imaging, Models, Structural, Radiometry, Sensitivity and Specificity, Sepharose
- in
- Physics in Medicine and Biology
- volume
- 35
- issue
- 12
- pages
- 9 pages
- publisher
- IOP Publishing
- external identifiers
-
- scopus:0025203008
- pmid:2284333
- ISSN
- 0031-9155
- DOI
- 10.1088/0031-9155/35/12/003
- language
- English
- LU publication?
- yes
- id
- 3e17cdc1-ae19-4dc0-bbff-4e5301ba03ae
- date added to LUP
- 2016-08-16 12:17:51
- date last changed
- 2024-01-04 10:49:38
@article{3e17cdc1-ae19-4dc0-bbff-4e5301ba03ae, abstract = {{<p>The measurement of absorbed dose distributions using dosemeter gel and magnetic resonance imaging (MRI) in a standard geometry has been investigated. Absorbed depth-dose curves and profiles measured with this new technique show good agreement with corresponding measurements using diodes. This was proven in a 60Co beam as well as an electron beam. The dosemeter gel is made of agarose and ferrous sulphate solution. The dose response is linear (r = 0.9996) in the investigated dose interval, 0-40 Gy. The sensitivity is a factor of about six higher compared to ordinary ferrous sulphate solution, known as 'Fricke'. This is a true 3D dose measurement technique which will have a number of applications in radiation therapy, since it is possible to mould the gel to arbitrary geometries, mix different radiation qualities and integrate the absorbed dose from different kinds of fields.</p>}}, author = {{Olsson, L E and Fransson, A and Ericsson, A and Mattsson, S}}, issn = {{0031-9155}}, keywords = {{Dose-Response Relationship, Radiation; Ferrous Compounds; Gels; Humans; Magnetic Resonance Imaging; Models, Structural; Radiometry; Sensitivity and Specificity; Sepharose}}, language = {{eng}}, number = {{12}}, pages = {{31--1623}}, publisher = {{IOP Publishing}}, series = {{Physics in Medicine and Biology}}, title = {{MR imaging of absorbed dose distributions for radiotherapy using ferrous sulphate gels}}, url = {{http://dx.doi.org/10.1088/0031-9155/35/12/003}}, doi = {{10.1088/0031-9155/35/12/003}}, volume = {{35}}, year = {{1990}}, }