Abstract
In this paper, a method for detecting gastric lymph nodes from abdominal CT images is proposed. The positions of metastatic cancers and metastatic lymph nodes should be accurately estimated in order to determine the optimal surgical plan for cancer removal. Ellipsoidal- and spherical-shaped lymph nodes are observed in medical images. However, the detection target of previous lymph node detection methods was only the spherical-shaped lymph nodes. We propose a method for detecting both ellipsoidal- and spherical-shaped lymph nodes by using a multi-shape and multi-scale ellipsoidal structure detection filter that detects the lymph nodes from CT images. The size and the shape of a detection target are specified by the parameters of the filter. The multi-shape and multi-scale detection is performed by applying the filter multiple times with different values for the parameters. Experimental results using 16 cases of CT images showed that the proposed method could detect 56.8% of lymph nodes.
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Oda, M., Kitasaka, T., Fujiwara, M., Misawa, K., Mori, K. (2012). Method for Detecting Enlarged Lymph Nodes from 3D Abdominal CT Images with a Multi-shape and Multi-scale Ellipsoidal Structure Detection Filter. In: Yoshida, H., Hawkes, D., Vannier, M.W. (eds) Abdominal Imaging. Computational and Clinical Applications. ABD-MICCAI 2012. Lecture Notes in Computer Science, vol 7601. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33612-6_25
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DOI: https://doi.org/10.1007/978-3-642-33612-6_25
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-33611-9
Online ISBN: 978-3-642-33612-6
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