TY - GEN
T1 - Tissue characterization of local myocardium using phase frequency spectrum of ultrasonic RF signal
AU - Ishii, Hirotake
AU - Tsuruoka, Shinji
AU - Ibrahimy, Muhammad Ibn
AU - Kimura, Funritaka
AU - Wakabayashi, Tetsushi
AU - Ohyama, Wataru
AU - Sekioka, Kiyotsugu
PY - 2003/1/1
Y1 - 2003/1/1
N2 - 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.
AB - 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.
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U2 - 10.1109/APBME.2003.1302624
DO - 10.1109/APBME.2003.1302624
M3 - Conference contribution
AN - SCOPUS:84945970236
T3 - APBME 2003 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003
SP - 142
EP - 143
BT - APBME 2003 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003, APBME 2003
Y2 - 20 October 2003 through 22 October 2003
ER -