VISUALIZATION OF INTRACARDIAC ABNORMAL FLOW BY A NEWLY DEVELOPED PULSED DOPPLER TECHNIQUE.

Toshio Morita; A. Kitabatake; M. Asao; J. Tanouchi; K. Ishihara; K. Chihara; K. Fujii; T. Masuyama; H. Ito; M. Hori; M. Fukushima; M. Inoue; H. Abe

VISUALIZATION OF INTRACARDIAC ABNORMAL FLOW BY A NEWLY DEVELOPED PULSED DOPPLER TECHNIQUE.

Toshio Morita, A. Kitabatake, M. Asao, J. Tanouchi, K. Ishihara, K. Chihara, K. Fujii, T. Masuyama, H. Ito, M. Hori, M. Fukushima, M. Inoue, H. Abe

Research output: Contribution to journal › Conference article › peer-review

Abstract

The authors have developed a system which combines duplex Doppler echocardiography and digital multigate Doppler technique, providing structure and flow information simultaneously. This study evaluated the flow abnormalities in patients with aortic regurgitation and with mitral regurgitation by the turbulence index, the square root of the variance of the instantaneous power frequency spectrum of Doppler signals. The color coded display of turbulence indexes was superimposed on the two-dimensional echocardiogram to visualize the distribution of the intracardiac flow abnormalities. The regurgitant flow distribution on the two-dimensional cardiac image was coincident with that of angiography. The results suggest that the method offers quantitative evaluation of the distribution of regurgitation.

Original language	English
Pages (from-to)	168-169
Number of pages	2
Journal	Japanese journal of medical electronics and biological engineering
Volume	22
Publication status	Published - Apr 1 1984
Externally published	Yes

ASJC Scopus subject areas

Biomedical Engineering

Cite this

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title = "VISUALIZATION OF INTRACARDIAC ABNORMAL FLOW BY A NEWLY DEVELOPED PULSED DOPPLER TECHNIQUE.",

abstract = "The authors have developed a system which combines duplex Doppler echocardiography and digital multigate Doppler technique, providing structure and flow information simultaneously. This study evaluated the flow abnormalities in patients with aortic regurgitation and with mitral regurgitation by the turbulence index, the square root of the variance of the instantaneous power frequency spectrum of Doppler signals. The color coded display of turbulence indexes was superimposed on the two-dimensional echocardiogram to visualize the distribution of the intracardiac flow abnormalities. The regurgitant flow distribution on the two-dimensional cardiac image was coincident with that of angiography. The results suggest that the method offers quantitative evaluation of the distribution of regurgitation.",

author = "Toshio Morita and A. Kitabatake and M. Asao and J. Tanouchi and K. Ishihara and K. Chihara and K. Fujii and T. Masuyama and H. Ito and M. Hori and M. Fukushima and M. Inoue and H. Abe",

year = "1984",

month = apr,

day = "1",

language = "English",

volume = "22",

pages = "168--169",

journal = "Japanese journal of medical electronics and biological engineering",

issn = "0021-3292",

publisher = "Nihon M E Gakkai",

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TY - JOUR

T1 - VISUALIZATION OF INTRACARDIAC ABNORMAL FLOW BY A NEWLY DEVELOPED PULSED DOPPLER TECHNIQUE.

AU - Morita, Toshio

AU - Kitabatake, A.

AU - Asao, M.

AU - Tanouchi, J.

AU - Ishihara, K.

AU - Chihara, K.

AU - Fujii, K.

AU - Masuyama, T.

AU - Ito, H.

AU - Hori, M.

AU - Fukushima, M.

AU - Inoue, M.

AU - Abe, H.

PY - 1984/4/1

Y1 - 1984/4/1

N2 - The authors have developed a system which combines duplex Doppler echocardiography and digital multigate Doppler technique, providing structure and flow information simultaneously. This study evaluated the flow abnormalities in patients with aortic regurgitation and with mitral regurgitation by the turbulence index, the square root of the variance of the instantaneous power frequency spectrum of Doppler signals. The color coded display of turbulence indexes was superimposed on the two-dimensional echocardiogram to visualize the distribution of the intracardiac flow abnormalities. The regurgitant flow distribution on the two-dimensional cardiac image was coincident with that of angiography. The results suggest that the method offers quantitative evaluation of the distribution of regurgitation.

AB - The authors have developed a system which combines duplex Doppler echocardiography and digital multigate Doppler technique, providing structure and flow information simultaneously. This study evaluated the flow abnormalities in patients with aortic regurgitation and with mitral regurgitation by the turbulence index, the square root of the variance of the instantaneous power frequency spectrum of Doppler signals. The color coded display of turbulence indexes was superimposed on the two-dimensional echocardiogram to visualize the distribution of the intracardiac flow abnormalities. The regurgitant flow distribution on the two-dimensional cardiac image was coincident with that of angiography. The results suggest that the method offers quantitative evaluation of the distribution of regurgitation.

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M3 - Conference article

AN - SCOPUS:0021410324

SN - 0021-3292

VL - 22

SP - 168

EP - 169

JO - Japanese journal of medical electronics and biological engineering

JF - Japanese journal of medical electronics and biological engineering

ER -

VISUALIZATION OF INTRACARDIAC ABNORMAL FLOW BY A NEWLY DEVELOPED PULSED DOPPLER TECHNIQUE.

Abstract

ASJC Scopus subject areas

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