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Breast Image Registration by Combining Finite Elements and Free-Form Deformations

机译：结合有限元和自由形式变形的乳房图像配准

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摘要

During breast cancer diagnosis, the breasts undergo large deformations due to gravity or compression loads. It is therefore non-trivial to recover the deformation and register medical images of the breast in different orientations (e.g. prone versus supine). Free-form deformations and biomechanical finite element models have been used to non-rigidly register breast images from prone to supine, but with limited success. In this paper, we demonstrate that the use of a finite element model to predict the deformation of the breast from prone to supine provides a significantly more accurate registration compared to free-form deformation methods. We also show that the use of this biomechanical model prediction as a prior to free-form deformation provides a significantly more accurate match than does the use of either method independently.
机译：在乳腺癌诊断期间，由于重力或压缩负荷，乳房会发生较大变形。因此，恢复变形并配准不同方向（例如俯卧与仰卧）的乳房医学图像并非易事。自由形式的变形和生物力学的有限元模型已经被用来非刚性地记录从俯卧到仰卧的乳房图像，但是效果有限。在本文中，我们证明，与自由形式的变形方法相比，使用有限元模型来预测乳房从俯卧到仰卧的变形可提供更为准确的配准。我们还表明，使用这种生物力学模型预测作为自由变形之前，比单独使用这两种方法提供的匹配要精确得多。

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  • 来源
    《Digital mammography》|2010年|p.736-743|共8页
  • 会议地点 Girona(ES);Girona(ES)
  • 作者

    Angela W.C. Lee; Julia A. Schnabel; Vijay Rajagopal; Poul M.F. Nielsen; Martyn P. Nash;

  • 作者单位

    Auckland Bioengineering Institute, The University of Auckland, New Zealand;

    Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, UK;

    Auckland Bioengineering Institute, The University of Auckland, New Zealand;

    Auckland Bioengineering Institute, The University of Auckland, New Zealand ,Department of Engineering Science, The University of Auckland, New Zealand;

    Auckland Bioengineering Institute, The University of Auckland, New Zealand ,Department of Engineering Science, The University of Auckland, New Zealand;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 生物医学工程;
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