Related resources
Full-text held externally
Search for item elsewhere
University researcher(s)
Academic department(s)
A case study highlighting the benefits of a novel three dimensional evidence driven, shape model supported, segmentation algorithm
Price, G; Price, G; Marchant, T; Moore, C
In: IEEE International Conference on Medical Information Visualisation (MediVis), July 2007; Zurich (Switzerland). IEEE; 2007. p. 75-80.
Access to files
Full-text and supplementary files are not available from Manchester eScholar. Full-text is available externally using the following links:
Full-text held externally
Abstract
The use of time-of-treatment imaging is increasingly commonplace in radiotherapy, with cone beam CT (CBCT) the primary modality. To make full use of this technology, the tumour target and critical organs need to be segmented from the image volumes. CBCT images unfortunately often suffer from poor contrast and significant image artefacts compared with the standard CT image sets used in treatment planning, making this task more difficult. Delineations created using the common manual contouring tools suffer, in terms of observer variability, as a result of this. We have recently described a novel segmentation algorithm. The algorithm is fully three dimensional and incorporates prior knowledge but with ultimate control of the delineation morphology remaining with the user. Using multi-observer bladder delineations on a set of serial in-treatment CBCT image volumes, we colourwash three dimensional renderings of the mean surface to visualise how certain features in our algorithm and its implementation can help reduce inter-observer variability.
Keyword(s)
colourwash three dimensional renderings; delineation morphology; image artefacts; image segmentation; image volumes; manual contouring tools; medical image processing; multi-observer bladder delineations; patient treatment; segmentation algorithm; three dimensional evidence driven; time-of-treatment imaging; treatment planning
Bibliographic metadata
- image segmentation
- medical image processing
- patient treatment
- colourwash three dimensional renderings
- delineation morphology
- image artefacts
- image volumes
- manual contouring tools
- multi-observer bladder delineations
- segmentation algorithm
- three dimensional evidence driven
- time-of-treatment imaging
- treatment planning
- Related website http://dx.doi.org/10.1109/MEDIVIS.2007.1