Tools to analyse and display variations in anatomical delineation

Australasian Physical & Engineering Sciences in Medicine
Martin A EbertB Hooton

Abstract

Variations in anatomical delineation, principally due to a combination of inter-observer contributions and image-specificity, remain one of the most significant impediments to geometrically-accurate radiotherapy. Quantification of spatial variability of the delineated contours comprising a structure can be made with a variety of metrics, and the availability of software tools to apply such metrics to data collected during inter-observer or repeat-imaging studies would allow their validation. A suite of such tools have been developed which use an Extensible Markup Language format for the exchange of delineated 3D structures with radiotherapy planning or review systems. These tools provide basic operations for manipulating and operating on individual structures and related structure sets, and for deriving statistics on spatial variations of contours that can be mapped onto the surface of a reference structure. Use of these tools on a sample dataset is demonstrated together with import and display of results in the SWAN treatment plan review system.

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Citations

Oct 3, 2015·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Elise M PogsonLois C Holloway
Feb 29, 2020·Human Factors·Panagiotis Matsangas, Nita Lewis Shattuck
Nov 2, 2019·International Journal of Behavioral Development·Angela D StaplesCaroline Hoyniak
Mar 4, 2017·International Journal of Behavioral Development·Anjolii DiazJody Southworth

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