超音波画像を用いた肝硬変識別の高精度化
超音波画像を用いた肝硬変識別の高精度化
カテゴリ: 論文誌(論文単位)
グループ名: 【C】電子・情報・システム部門
発行日: 2013/02/01
タイトル(英語): An Improvement of Liver Cirrhosis Classification Using Ultrasonic Images
著者名: 林 孝哉(山口大学大学院医学系研究科),藤田 悠介(山口大学大学院医学系研究科),三谷 芳弘(宇部工業高等専門学校制御情報工学科),浜本 義彦(山口大学大学院医学系研究科),瀬川 誠(山口大学医学部),寺井 崇二(山口大学大学院医学系研究科),坂井田 功(山口大学大学院医学系研究科)
著者名(英語): Takaya Hayashi (Graduate School of Medicine, Yamaguchi University), Yusuke Fujita (Graduate School of Medicine, Yamaguchi University), Yoshihiro Mitani (Department of Intelligent System Engineering, Ube National College of Technology), Yoshihiko Hamamoto (Graduate School of Medicine, Yamaguchi University), Makoto Segawa (Faculty of Medicine, Yamaguchi University), Shuji Terai (Graduate School of Medicine, Yamaguchi University), Isao Sakaida (Graduate School of Medicine, Yamaguchi University)
キーワード: 肝硬変診断,超音波画像,重み付き自己相関係数,バイラテラルフィルタ Diagnosis of Cirrhosis,Ultrasonic Image,Weighted Autocorrelation Coefficient,Bilateral Filter
要約(英語): Ultrasonic images have been widely used for diagnosis of liver cirrhosis. In practice, there are significant differences in the result of a diagnosis among individuals for physician's experiences. Therefore, the objective and quantitative method for diagnosis is needed. The quality of M-mode image is in general low. Thus, it is very difficult to diagnose liver cirrhosis with M-mode images. In cirrhosis classification using the ultrasonic M-mode image, Zhou's method was proposed. In this paper, compared with the Zhou's method, we propose a method using weighted autocorrelation coefficient to extract an abdominal aorta wall. Furthermore, we propose the use of a bilateral filter to improve the quality of the M-mode images. The bilateral filter is expected to be effective one of smoothing filters preserving an edge to improve image quality in an ultrasonic image. The experimental results show that the weighted autocorrelation coefficient approach leads to improvement in the performance of the abdominal aorta wall extraction and moreover the bilateral filter is effective in both the abdominal aorta wall extraction and cirrhosis classification.
本誌: 電気学会論文誌C(電子・情報・システム部門誌) Vol.133 No.2 (2013) 特集:省電力時代の電子回路技術
本誌掲載ページ: 289-296 p
原稿種別: 論文/日本語
電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/133/2/133_289/_article/-char/ja/
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