1J-1 Blood Flow Velocity Vector Imaging with High Frame Rate Imaging Methods

2006 ◽  
Author(s):  
J.-y. Lu ◽  
Z. Wang ◽  
S.-J. Kwon
Keyword(s):  
Blood Flow ◽  
Flow Velocity ◽  
Blood Flow Velocity ◽  
Velocity Vector ◽  
Frame Rate ◽  
Imaging Methods ◽  
High Frame Rate ◽  
Velocity Vector Imaging

Preliminary study on estimation of flow velocity vectors using focused transmit beams

2021 ◽  
Author(s):  
Hideyuki Hasegawa ◽  
Michiya Mozumi ◽  
Masaaki Omura ◽  
Ryo Nagaoka ◽  
Kozue Saito
Keyword(s):  
Blood Flow ◽  
Flow Velocity ◽  
Blood Flow Velocity ◽  
Soft Tissues ◽  
Estimation Error ◽  
Frame Rate ◽  
High Frame Rate ◽  
In Vivo Measurement ◽  
Preliminary Study

Abstract High-frame-rate ultrasound imaging with plane wave transmissions is a predominant method for blood flow imaging, and methods for estimation of blood flow velocity vectors have been developed based on high-frame-rate imaging. On the other hand, in imaging of soft tissues, such as arterial walls and atherosclerotic plaques, high-frame-rate imaging sometimes suffers from high-level clutters. Even in observation of the arterial wall with a focused transmit beam, it would be highly beneficial if blood flow velocity vectors could be estimated simultaneously. We conducted a preliminary study on estimation of blood flow velocity vectors based on a multi-angle Doppler method with focused transmit beam and parallel receive beamforming. It was shown that the lowest estimation error was achieved at a steering angle of 25 degrees by simulation. Also, velocity vectors with typical velocity magnitudes and directions could be obtained by the proposed method in in vivo measurement of a carotid artery.

Reconstruction of the blood flow velocity vector as an additional mode of ultrasonic tomograph

2015 ◽  
Vol 23 (2) ◽  
pp. 135-142 ◽  
Author(s):  
V. A. Burov ◽  
O. V. Matveev ◽  
D. I. Zotov ◽  
O. D. Rumyantseva
Keyword(s):  
Blood Flow ◽  
Flow Velocity ◽  
Blood Flow Velocity ◽  
Velocity Vector ◽  
Additional Mode

scholarly journals Blood flow velocity vector field reconstruction from dual-beam bidirectional Doppler OCT measurements in retinal veins

2015 ◽  
Vol 6 (5) ◽  
pp. 1599 ◽  
Author(s):  
Gerold C. Aschinger ◽  
Leopold Schmetterer ◽  
Veronika Doblhoff-Dier ◽  
Rainer A. Leitgeb ◽  
Gerhard Garhöfer ◽  
...  
Keyword(s):  
Blood Flow ◽  
Vector Field ◽  
Flow Velocity ◽  
Blood Flow Velocity ◽  
Velocity Vector ◽  
Velocity Vector Field ◽  
Field Reconstruction ◽  
Dual Beam ◽  
Doppler Oct

High-frame-rate velocity vector imaging echocardiography: an in vitro evaluation

2016 ◽  
Author(s):  
Philippe Joos ◽  
Jonathan Poree ◽  
Herve Liebgott ◽  
Didier Vray ◽  
Guy Cloutier ◽  
...  
Keyword(s):  
Velocity Vector ◽  
Frame Rate ◽  
In Vitro Evaluation ◽  
High Frame Rate ◽  
Velocity Vector Imaging
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