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Documentation/4.3/Modules/GelDosimetry - Revision history
2026-04-14T02:21:48Z
Revision history for this page on the wiki
MediaWiki 1.33.0
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Pinter: New screenshot
2014-02-02T18:54:45Z
<p>New screenshot</p>
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 18:54, 2 February 2014</td>
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Pinter
https://www.slicer.org/w/index.php?title=Documentation/4.3/Modules/GelDosimetry&diff=36698&oldid=prev
Pinter: Page created
2013-11-25T23:21:07Z
<p>Page created</p>
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[[File:LogoCco.png|Cancer Care Ontario]]<br />
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{{documentation/{{documentation/version}}/module-section|Introduction and Acknowledgements}}<br />
Authors: <b>Jennifer Andrea</b> (PerkLab, Queen's University), <b>Csaba Pinter</b> (PerkLab, Queen's University), Mattea Welch (University of Toronto)<br><br />
Contributors: Kevin Alexander (Kingston General Hospital), John Schreiner (Kingston General Hospital)<br><br />
Contacts:<br />
* Csaba Pinter, <email>csaba.pinter@queensu.ca</email><br />
* [[Documentation/SlicerRT/HowToReportAnError|How to report an error]]<br />
License: [http://www.slicer.org/pages/LicenseText Slicer license]<br><br />
'''Download/install:''' install 3D Slicer, start 3D Slicer, open the Extension Manager, install the GelDosimetry extension<br />
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* Gel dosimetry analysis is a tool used in commissioning new radiation techniques and to validate the accuracy of radiation treatment by enabling visual comparison of the planned dose to the delivered dose, where correspondence between the two dose distributions is achieved using embedded landmarks. Gel dosimetry is based on imaging chemical systems spatially fixed in gelatin, which exhibit a detectable change upon irradiation. This chemical change is related to the amount of radiation received and can be probed by several imaging techniques, allowing 3D dose information to be obtained.<br />
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* Gel dosimetry analysis workflow:<br />
*# Loading planning image (PLANCT) and a planned dose distribution (PLANDOSE)<br />
*# Load an on-board imager cone beam CT scan (OBI)<br />
*# Register it to PLANCT<br />
*# Transform PLANDOSE using result transform (to OBI coordinate frame)<br />
*# Load 3D optical CT scan of the gel, or a 2D scan of the film. (MEASURED)<br />
*# Register MEASURED to OBI using fiducial marks, using rigid transform<br />
*# Transform MEASURED using result transform (to OBI coordinate frame)<br />
*# Load Percent Depth Dose data (two-column spreadsheet)<br />
*# Load experimental CALIBRATION 3D optical CT scan from VFF file<br />
*# Get mean optical densities from the central cylinder of the CALIBRATION volume<br />
*# Align PDD curve with the curve resulting from step 10<br />
*# Calibrate PDD data using RDF and electron MU values input by the user<br />
*# Fit polynomial on the optical density vs. dose curve (resulting from the aligned calibration curves)<br />
*# Perform a gamma, chi, etc. test between MEASURED and PLANDOSE, yielding another 3D volume COMPARISON<br />
*# Extract statistics from COMPARISON<br />
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| [[File:GelDosimetrySlicelet_0.1_LandmarkRegistrationStep.png|800px|SlicerRT highlights]]<br />
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{{documentation/{{documentation/version}}/extension-section|Similar Extensions}}<br />
* [[Documentation/{{documentation/version}}/Extensions/SlicerRT|SlicerRT]]: GelDosimetry uses several modules from the SlicerRT extension<br />
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{{documentation/{{documentation/version}}/extension-section|References}}<br />
<!--<br />
==How to cite==<br />
Please cite the following paper when referring to Plus in your publication:<br><br />
C. Pinter, A. Lasso, A. Wang, D. Jaffray and G. Fichtinger, [http://perk.cs.queensu.ca/sites/perk.cs.queensu.ca/files/Pinter2012_0.pdf "SlicerRT – Radiation therapy research toolkit for 3D Slicer"], Med. Phys., 39(10) pp. 6332-6338, 2012<br />
<pre><br />
@ARTICLE{Pinter2012,<br />
author = {Pinter, C. and Lasso, A. and Wang, A. and Jaffray, D. and Fichtinger, G.},<br />
title = {SlicerRT – Radiation therapy research toolkit for 3D Slicer},<br />
journal = {Med. Phys.},<br />
year = {2012},<br />
volume = {39},<br />
number = {10},<br />
pages = {6332-6338},<br />
}<br />
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