TY - JOUR
T1 - Evaluation of blood flow dynamics in healthy and myocardial infarction hearts using Echodynamography
AU - Oktamuliana, Sri
AU - Saijo, Yoshifumi
AU - Hasegawa, Kaoru
N1 - Funding Information:
The first author should like to acknowledge the Directorate General of Higher Education (DIKTI), Ministry of Research , Technology and Higher Education; and Endowment Fund for Education (LPDP), Ministry of Finance, Republic of Indonesia, who have provided financial support through BUDI scholarship to do research and to study in Graduate School of Biomedical Engineering, Tohoku University.
Publisher Copyright:
© 2018 Acoustical Society of America.
PY - 2017
Y1 - 2017
N2 - Blood flow dynamics were analyzed in healthy and myocardial infarction (MI) subjects using Echodynamography (EDG). EDG visualizes two-dimensional (2D) distribution of blood flow vector in the heart applying the theories of fluid dynamics to color Doppler echocardiography. The principle concept of EDG is that non-turbulent blood flow is described as the combination of base flow and vortex flow. The vortex flow is considered as a flow on a plane so that classical "stream function" is applied to obtain blood flow vector. The base flow is defined as the flow without vortex formation on the plane. Newly proposed "flow function" considers blood flow to and from other plane and the vector of the base flow is obtained with the flow function. Color Doppler data of heart apical three-chamber view were recorded by a commercially available medical ultrasound equipment. Blood flow distribution was different in healthy and MI subjects. In a healthy subject, vortex flow was observed as a whole blood flow in along the central flow area distributed to the base of the heart, and in the myocardial infarction the entire blood flow region the massive vortex flow was observed mainly at the apical part even in the ejection period.
AB - Blood flow dynamics were analyzed in healthy and myocardial infarction (MI) subjects using Echodynamography (EDG). EDG visualizes two-dimensional (2D) distribution of blood flow vector in the heart applying the theories of fluid dynamics to color Doppler echocardiography. The principle concept of EDG is that non-turbulent blood flow is described as the combination of base flow and vortex flow. The vortex flow is considered as a flow on a plane so that classical "stream function" is applied to obtain blood flow vector. The base flow is defined as the flow without vortex formation on the plane. Newly proposed "flow function" considers blood flow to and from other plane and the vector of the base flow is obtained with the flow function. Color Doppler data of heart apical three-chamber view were recorded by a commercially available medical ultrasound equipment. Blood flow distribution was different in healthy and MI subjects. In a healthy subject, vortex flow was observed as a whole blood flow in along the central flow area distributed to the base of the heart, and in the myocardial infarction the entire blood flow region the massive vortex flow was observed mainly at the apical part even in the ejection period.
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U2 - 10.1121/2.0000716
DO - 10.1121/2.0000716
M3 - Conference article
AN - SCOPUS:85046747582
SN - 1939-800X
VL - 32
JO - Proceedings of Meetings on Acoustics
JF - Proceedings of Meetings on Acoustics
IS - 1
M1 - 020007
T2 - 2017 ICU Honolulu: 6th International Congress on Ultrasonics
Y2 - 18 December 2017 through 20 December 2017
ER -