Evaluation of 3D printed immobilisation shells for head and neck IMRT

Fisher, Mark, Applegate, Christopher, Ryalat, Mohammad, Laycock, Stephen, Hulse, Mark, Emmens, Daniel and Bell, Duncan (2014) Evaluation of 3D printed immobilisation shells for head and neck IMRT. Open Journal of Radiology, 04 (04). pp. 322-328. ISSN 2164-3024

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Abstract

This paper presents the preclinical evaluation of a novel immobilization system for patients undergoing external beam radiation treatment of head and neck tumors. An immobilization mask is manufactured directly from a 3-D model, built using the CT data routinely acquired for treatment planning so there is no need to take plaster of Paris moulds. Research suggests that many patients find the mould room visit distressing and so rapid prototyping could potentially improve the overall patient experience. Evaluation of a computer model of the immobilization system using an anthropomorphic phantom shows that >99% of vertices are within a tolerance of ±0.2 mm. Hausdorff distance was used to analyze CT slices obtained by rescanning the phantom with a printed mask in position. These results show that for >80% of the slices the median “worse-case” tolerance is approximately 4 mm. These measurements suggest that printed masks can achieve similar levels of immobilization to those of systems currently in clinical use.

Item Type:	Article
Additional Information:	This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/
Uncontrolled Keywords:	intensity modulated radiotherapy treatment (imrt),patient immobilization system,3-d printing
Faculty \ School:	Faculty of Science > School of Computing Sciences Faculty of Science
UEA Research Groups:	Faculty of Science > Research Groups > Interactive Graphics and Audio
Depositing User:	Pure Connector
Date Deposited:	28 Jan 2015 12:38
Last Modified:	04 Mar 2024 17:23
URI:	https://ueaeprints.uea.ac.uk/id/eprint/52011
DOI:	10.4236/ojrad.2014.44042

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