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Variational Bayes inference based segmentation of heterogeneous lymphoma volumes in dual-modality PET-CT images

  • Jiyong Wang
  • , Yong Xia
  • , Jiabin Wang
  • , David Dagan Feng
  • The University of Sydney
  • Royal Prince Alfred Hospital
  • Hong Kong Polytechnic University
  • Shanghai Jiao Tong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Accurate segmentation of heterogeneous carcinoma lesions in medical images is vital to the treatment planning, assessment of therapy response and other oncological applications. With current state-of-the-art imaging modalities, the CT images enhance the interpretation of cancer functional abnormalities. We applied the variational Bayes inference (VBI) model on both anatomical and functional information for delineating lesion boundary. The model is improved by clinical meaningful initialisation. Clinical data consisting of eight lesions with inhomogeneous carcinoma distribution were used to evaluate the model accuracy. Our algorithm is capable of isolating lesions from background with higher accuracy comparing to the wildly used threshold (40% of SUVmax). The VBI segmentation error is less than 6.11% ± 4.92% which is much better than the results performed by fixed threshold method. The experimental results show that our novel statistic method can produce more accurate segmentation of heterogeneous lymphoma volume in PET-CT images.

Original languageEnglish
Title of host publicationProceedings - 2011 International Conference on Digital Image Computing
Subtitle of host publicationTechniques and Applications, DICTA 2011
Pages274-278
Number of pages5
DOIs
StatePublished - 2011
Externally publishedYes
Event2011 International Conference on Digital Image Computing: Techniques and Applications, DICTA 2011 - Noosa, QLD, Australia
Duration: 6 Dec 20118 Dec 2011

Publication series

NameProceedings - 2011 International Conference on Digital Image Computing: Techniques and Applications, DICTA 2011

Conference

Conference2011 International Conference on Digital Image Computing: Techniques and Applications, DICTA 2011
Country/TerritoryAustralia
CityNoosa, QLD
Period6/12/118/12/11

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • lymphoma
  • PET-CT
  • tumour segmentation
  • Variational Bayes Inference (VBI)

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