Title :
Method for noninvasive estimation of left ventricular end diastolic pressure based on analysis of heart wall vibration
Author :
Sato, M. ; Kanai, H. ; Chubachi, N. ; Honda, H. ; Koiwa, Y.
Author_Institution :
Dept. of Electr. Eng., Tohoku Univ., Sendai, Japan
fDate :
5/23/1996 12:00:00 AM
Abstract :
The authors present a new noninvasive method for measurement of the left ventricular (LV) end diastolic pressure by combining Mirsky´s (1974) method and the experimentally derived relationship among the elasticity of the LV wall, the LV sizes and the LV instantaneous mode-2 eigenfrequency. The LV instantaneous eigenfrequency is selectively determined from the time-frequency distribution obtained by applying the wavelet transform (WT) to the nonstationary vibration on the heart wall
Keywords :
biomechanics; blood pressure measurement; cardiology; vibrations; wavelet transforms; Mirsky´s method; elasticity; heart wall; heart wall vibration analysis; instantaneous mode-2 eigenfrequency; left ventricular end diastolic pressure; nonstationary vibration; time-frequency distribution; wavelet transform;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960659
