A Variational Framework for Joint Detection and Segmentation of Ovarian Cancer Metastases

  • Jianfei Liu
  • Shijun Wang
  • Marius George Linguraru
  • Jianhua Yao
  • Ronald M. Summers
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8150)


Detection and segmentation of ovarian cancer metastases have great clinical impacts on women’s health. However, the random distribution and weak boundaries of metastases significantly complicate this task. This paper presents a variational framework that combines region competition based level set propagation and image matching flow computation to jointly detect and segment metastases. Image matching flow not only detects metastases, but also creates shape priors to reduce over-segmentation. Accordingly, accurate segmentation helps to improve the detection accuracy by separating flow computation in metastasis and non-metastasis regions. Since all components in the image processing pipeline benefit from each other, our joint framework can achieve accurate metastasis detection and segmentation. Validation on 50 patient datasets demonstrated that our joint approach was superior to a sequential method with sensitivity 89.2% vs. 81.4% (Fisher exact test p = 0.046) and false positive per patient 1.04 vs. 2.04. The Dice coefficient of metastasis segmentation was 92±5.2% vs. 72±8% (paired t-test p = 0.022), and the average surface distance was 1.9±1.5mm vs. 4.5±2.2mm (paired t-test p = 0.004).


Ovarian Cancer Metastasis Joint Detection and Segmentation Level Set Dynamic Shape Prior 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Jianfei Liu
    • 1
  • Shijun Wang
    • 1
  • Marius George Linguraru
    • 2
  • Jianhua Yao
    • 1
  • Ronald M. Summers
    • 1
  1. 1.Imaging Biomarkers and Computer-Aided Diagnosis Laboratory, Radiology and Imaging ScienceNational Institutes of Health Clincial CenterBethesdaUSA
  2. 2.Sheikh Zayed Institute for Pediatric Surgical InnovationChildrens National Medical CenterWashingtonUSA

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