TY - GEN
T1 - Evaluation of vortex flow in left ventricle by echo-dynamography and phase contrast magnetic resonance angiography
AU - Kojima, Takanori
AU - Kameyama, Takeyoshi
AU - Nakajima, Hiroyuki
AU - Khmyrova, Elena
AU - Kurokawa, Takafumi
AU - Saijo, Yoshifumi
PY - 2012
Y1 - 2012
N2 - Echo-dynamography (EDG) is a method for visualizing left ventricular (LV) blood flow based on cardiac Doppler measurement in which blood flow component perpendicular to the ultrasonic beam is deduced by applying fluid dynamics theories to two-dimensional (2D) distribution of blood flow component along the ultrasonic beam. EDG has been validated by numerical simulation and particle image velocimetry of model circulation. However, these validations were too simple to reproduce unstable and asymmetrical flow in a beating heart. In the present study, EDG is compared with three-directional (3D) blood flow distribution on the same plane obtained with phase contrast magnetic resonance angiography (PCMRA) for clinical validation. Moreover, the location and vorticity of the vortex flow in LV are measured quantitatively and the relation to echocardiographic parameters of systolic and diastolic functions is discussed.
AB - Echo-dynamography (EDG) is a method for visualizing left ventricular (LV) blood flow based on cardiac Doppler measurement in which blood flow component perpendicular to the ultrasonic beam is deduced by applying fluid dynamics theories to two-dimensional (2D) distribution of blood flow component along the ultrasonic beam. EDG has been validated by numerical simulation and particle image velocimetry of model circulation. However, these validations were too simple to reproduce unstable and asymmetrical flow in a beating heart. In the present study, EDG is compared with three-directional (3D) blood flow distribution on the same plane obtained with phase contrast magnetic resonance angiography (PCMRA) for clinical validation. Moreover, the location and vorticity of the vortex flow in LV are measured quantitatively and the relation to echocardiographic parameters of systolic and diastolic functions is discussed.
UR - http://www.scopus.com/inward/record.url?scp=84882958745&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84882958745&partnerID=8YFLogxK
U2 - 10.1109/EMBC.2012.6346515
DO - 10.1109/EMBC.2012.6346515
M3 - Conference contribution
C2 - 23366476
AN - SCOPUS:84882958745
SN - 9781424441198
T3 - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
SP - 2676
EP - 2679
BT - 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2012
T2 - 34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2012
Y2 - 28 August 2012 through 1 September 2012
ER -