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. ISSN 1460-3969, 1467-1131

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Abstract

Purpose 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. Materials and methods 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. Results 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 (p=0 03). The users expressed a preference for the new tool (eight users) over the conventional outlining software (two users). Conclusions 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.

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:	23 May 2026 01:31
DOI:	10.1017/S146039691700019X
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3054760
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