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Preliminary Study on Appearance-Based Detection of Anatomical Point Landmarks in Body Trunk CT Images

机译:基于外观的躯干CT图像中的解剖点地标检测的初步研究

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摘要

Anatomical point landmarks as most primitive anatomical knowledge are useful for medical image understanding. In this study, we propose a detection method for anatomical point landmark based on appearance models, which include gray-level statistical variations at point landmarks and their surrounding area. The models are built based on results of Principal Component Analysis (PCA) of sample data sets. In addition, we employed generative learning method by transforming ROI of sample data. In this study, we evaluated our method with 24 data sets of body trunk CT images and obtained 95.8 + 7.3 % of the average sensitivity in 28 landmarks.
机译:作为最原始的解剖知识,解剖点地标对于医学图像理解很有用。在这项研究中,我们提出了一种基于外观模型的解剖点标志的检测方法,该模型包括点标志及其周围区域的灰度统计变化。这些模型是基于样本数据集的主成分分析(PCA)的结果构建的。此外,我们通过转换样本数据的ROI采用了生成学习方法。在这项研究中,我们使用身体躯干CT图像的24个数据集评估了我们的方法,并在28个界标中获得了平均灵敏度的95.8 + 7.3%。

著录项

  • 来源
    《Machine learning in medical imaging》|2010年|p.174-181|共8页
  • 会议地点 Beijing(CN);Beijing(CN);Beijing(CN);Beijing(CN)
  • 作者单位

    Department of Radiology, The University of Tokyo Hospital 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan;

    Department of Radiology, The University of Tokyo Hospital 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan;

    Department of Radiology, The University of Tokyo Hospital 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan;

    Department of Radiology, The University of Tokyo Hospital 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan,Division of Radiology and Biomedical Engineering, Graduate School of Medicine, The University of Tokyo 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan;

    Department of Radiology, The University of Tokyo Hospital 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan;

    Department of Radiology, The University of Tokyo Hospital 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan;

    Department of Radiology, The University of Tokyo Hospital 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan;

    Department of Radiology, The University of Tokyo Hospital 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan,Division of Radiology and Biomedical Engineering, Graduate School of Medicine, The University of Tokyo 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 医用物理学;
  • 关键词

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