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Tissue characterization of local myocardium using phase frequency spectrum of ultrasonic RF signal

Ishii, Hirotake and Tsuruoka, Shinji and Ibrahimy, Muhammad Ibn and Kimura, Fumitaka and Wakabayashi, Tetsushi and Ohyama, Wataru and Sekioka, Kiyotsugu (2003) Tissue characterization of local myocardium using phase frequency spectrum of ultrasonic RF signal. In: IEEE EMBS Asian-Pacific Conference on Biomedical Engineering, 2003, 20-22 October 2003, Japan.

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Abstract

A new phase frequency spectrum (PFS) method is proposed to estimate regional myocardial tissue character and function during cardiac cycle. The analysis employs the small range centering on the point tracked by the tracking system of a RF signal, and applies time-frequency analysis (wavelet transform) to the envelope of the RF signal. Result of the analysis is shown as two-dimensional image between frequency spectrum and cardiac-phase. The change of the phase frequency spectrum is measured and the diagnostic usefulness of the analysis for a lot of normal and abnormal hearts is confirmed experimentally.

Item Type: Conference or Workshop Item (Full Paper)
Additional Information: 4637/36145 (ISBN: 0-7803-7943-8, DOI: 10.1109/APBME.2003.1302624)
Uncontrolled Keywords: RF signal
Subjects: T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User: Dr Muhammad Ibrahimy
Date Deposited: 28 Mar 2014 03:01
Last Modified: 16 Apr 2014 06:42
URI: http://irep.iium.edu.my/id/eprint/36145

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