Document Detail

Research software for radiotherapy gel dosimetry.
MedLine Citation:
PMID:  10979593     Owner:  NLM     Status:  MEDLINE    
Gel dosimetry using magnetic resonance imaging is a technique which allows measurement of three-dimensional absorbed dose distributions in radiation therapy. This paper presents details of a software tool written specifically to provide facilities to perform image processing required in research and development of gel dosimetry. Collections of magnetic resonance images can be converted into either longitudinal or transverse nuclear magnetic resonance relaxation images. The conversions are accomplished by means of a pixel-by-pixel non-linear least squares fitting algorithm. Adjustments can be made to the number of parameters used in the fitting algorithm. Fundamental image manipulation tools such as window width/level display adjustment, zooming, profile and region of interest tools are provided. The software has been developed using MATLAB (The MathWorks Inc., Natick, MA) running on Windows 95. User interaction is via a windows graphical user interface (GUI). Data such as statistics from regions of interest can be exported to other windows applications for further processing. Flexibility is incorporated in the GUI design by taking advantage of the developmental aspects of the MATLAB environment. Although originally designed for gel dosimetry, the software can be used in any application of MRI which requires production and manipulation of relaxation time images.
P Murry; C Baldock
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Australasian physical & engineering sciences in medicine / supported by the Australasian College of Physical Scientists in Medicine and the Australasian Association of Physical Sciences in Medicine     Volume:  23     ISSN:  0158-9938     ISO Abbreviation:  Australas Phys Eng Sci Med     Publication Date:  2000 Jun 
Date Detail:
Created Date:  2000-10-24     Completed Date:  2000-10-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8208130     Medline TA:  Australas Phys Eng Sci Med     Country:  AUSTRALIA    
Other Details:
Languages:  eng     Pagination:  44-51     Citation Subset:  IM    
Centre for Medical and Health Physics, Queensland University of Technology, Brisbane, Australia.
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MeSH Terms
Image Processing, Computer-Assisted / methods,  statistics & numerical data
Magnetic Resonance Imaging
Radiotherapy Planning, Computer-Assisted / methods*,  statistics & numerical data
Reg. No./Substance:

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