Minimal point volumetric outlining and editing for radiotherapy treatment planning

Bridge, Pete ORCID: 0000-0001-7704-9812, Fielding, Andrew, Rowntree, Pamela and Pullar, Andrew
(2017) Minimal point volumetric outlining and editing for radiotherapy treatment planning. JOURNAL OF RADIOTHERAPY IN PRACTICE, 16 (3). pp. 280-285.

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<jats:title>Abstract</jats:title><jats:sec id="S146039691700019X_abs1" sec-type="general"><jats:title>Purpose</jats:title><jats:p>A novel radiotherapy outlining application uses a small number of user-assigned points across orthogonal planes to generate a mesh which is then edited across multiple slices using innovative three-dimensional (3D) sculpting tools. This paper presents the results of a bladder outlining study that compared times and volumes for the new tool with those of a conventional manual outlining tool.</jats:p></jats:sec><jats:sec id="S146039691700019X_abs2" sec-type="materialsandmethods"><jats:title>Materials and methods</jats:title><jats:p>All students undertaking their first University radiotherapy planning module were invited to participate. Following training, they performed a timed outlining of the same male bladder dataset and provided feedback on their preferred method.</jats:p></jats:sec><jats:sec id="S146039691700019X_abs3" sec-type="results"><jats:title>Results</jats:title><jats:p>Comparison of times from the resulting ten datasets demonstrated that the 3D segmentation tool was significantly faster than conventional software with a mean time of 11·9 minutes compared with 19·2 minutes (<jats:italic>p</jats:italic>=0·03). The users expressed a preference for the new tool (eight users) over the conventional outlining software (two users).</jats:p></jats:sec><jats:sec id="S146039691700019X_abs4" sec-type="conclusions"><jats:title>Conclusions</jats:title><jats:p>A minimal point 3D volumetric manual outlining tool utilising orthogonal computed tomography planes demonstrated significant time saving for bladder segmentation compared with axial-based outlining within a group of novice outliners. Future work aims to establish the role of the 3D multi-slice sculpting tools in editing of auto-segmentation derived contour sets.</jats:p></jats:sec>

Item Type: Article
Additional Information: license: © Cambridge University Press 2017
Uncontrolled Keywords: outlining, radiotherapy, segmentation, speed, treatment planning
Depositing User: Symplectic Admin
Date Deposited: 16 Sep 2019 07:37
Last Modified: 19 Jan 2023 00:26
DOI: 10.1017/S146039691700019X
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