Study on the improvement in accuracy of automatic tracking for regional myocardium using ultrasonic RF echo signal

Yoshikazu Yasumoto, Shinji Tsuruoka, Tomohiro Yoshikawa, Tsuyoshi Shinogi, Fumikata Kimura, Tetsushi Wakabavashi, Wataru Oyama, Kiyotsugu Sekioka

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

We have developed the automatic tracking method for regional myocardium with high accuracy on ultrasonic RF echo signal. Previously we proposed "correlation method with confidence (CMC)". However, the ability of the tracking method is insufficient for the RF signals of some subjects. This paper describes a study on the improvement in accuracy of the automatic tracking (CMC). The tracking method employs the correlation coefficients at a position as the degree of confidence of the tracking for a specified observing point, that is, it employs the position obtained by hierarchical correlation method for an observing points if the correlation coefficient of the observing point is high, and it employs the mean moved position of two nearby observing points at the same time if the correlation coefficient of the observing point is low. However, we found the unfortunate case for the tracking method, that is, the fact that the many points have low correlation coefficients at the same time. We found that the large movement of myocardium causes the tracking error for CMC.

本文言語英語
ホスト出版物のタイトルAPBME 2003 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003
出版社Institute of Electrical and Electronics Engineers Inc.
ページ202-203
ページ数2
ISBN(電子版)0780379438, 9780780379435
DOI
出版ステータス出版済み - 1 1 2003
外部発表はい
イベントIEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003, APBME 2003 - Kyoto-Osaka-Nara, 日本
継続期間: 10 20 200310 22 2003

その他

その他IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003, APBME 2003
国/地域日本
CityKyoto-Osaka-Nara
Period10/20/0310/22/03

All Science Journal Classification (ASJC) codes

  • 生体医工学

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