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

Hirotake Ishii, Shinji Tsuruoka, Muhammad Ibn Ibrahimy, Funritaka Kimura, Tetsushi Wakabayashi, Wataru Ohyama, Kiyotsugu Sekioka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In a tissue characterization of local myocardium, the ultrasonic integrated backscatter (IBS) [1] is known well. The validity of IBS is confirmed clinically. However, the ability of diagnosis is not adequate for the light myocardial disease. Because IBS averaged intensity of reflected ultrasound (about 3 micro second = 2.3mm) in the region of interest, and it cannot measure the cardiac phase dependent spectrum change of radio frequency (RF) signal from muscular tissue. We are investigating the new method to evaluate regional myocardial function much precisely using ultrasonic RF signal, and we have proposed the automatic tracking method using "Correlation Method weighted with Confidence (CMC)" [2]. Our tracking system can detect the motion of the specified local myocardium with high accuracy, and it can find the regional thickness change (transmural difference from endocardium to epicardium) during one cardiac cycle in normal and abnormal human heart.

Original languageEnglish
Title of host publicationAPBME 2003 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages142-143
Number of pages2
ISBN (Electronic)0780379438, 9780780379435
DOIs
Publication statusPublished - Jan 1 2003
EventIEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003, APBME 2003 - Kyoto-Osaka-Nara, Japan
Duration: Oct 20 2003Oct 22 2003

Publication series

NameAPBME 2003 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003

Other

OtherIEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003, APBME 2003
CountryJapan
CityKyoto-Osaka-Nara
Period10/20/0310/22/03

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering

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