A Simulation Model for Doppler Ultrasound Signals from Pulsatile Blood Flow in Stenosed Vessels

2008 ◽  
Author(s):  
Lifang Wang ◽  
Yufeng Zhang ◽  
Dingkang Wang ◽  
Nafeng Su ◽  
Chengyan Du
Keyword(s):  
Blood Flow ◽  
Simulation Model ◽  
Doppler Ultrasound ◽  
Pulsatile Blood Flow ◽  
Ultrasound Signals

A computer simulation model for Doppler ultrasound signals from pulsatile blood flow in stenosed vessels

2012 ◽  
Vol 42 (9) ◽  
pp. 906-914 ◽  
Author(s):  
Lian Gao ◽  
Yufeng Zhang ◽  
Kexin Zhang ◽  
Guanghui Cai ◽  
Junhua Zhang ◽  
...  
Keyword(s):  
Computer Simulation ◽  
Blood Flow ◽  
Simulation Model ◽  
Doppler Ultrasound ◽  
Computer Simulation Model ◽  
Pulsatile Blood Flow ◽  
Ultrasound Signals

Neural network analysis of blood flow Doppler ultrasound signals: a pilot study

1997 ◽  
Vol 6 ◽  
pp. S11
Author(s):  
I.A. Wright ◽  
N.A.J. Gough ◽  
F. Rakebrandts ◽  
M. Wahabs ◽  
J.P. Woodcock
Keyword(s):  
Neural Network ◽  
Blood Flow ◽  
Pilot Study ◽  
Network Analysis ◽  
Doppler Ultrasound ◽  
Neural Network Analysis ◽  
Ultrasound Signals

scholarly journals An Ultrasound Simulation Model for the Pulsatile Blood Flow Modulated by the Motion of Stenosed Vessel Wall

2016 ◽  
Vol 2016 ◽  
pp. 1-16
Author(s):  
Qinghui Zhang ◽  
Yufeng Zhang ◽  
Yi Zhou ◽  
Kun Zhang ◽  
Kexin Zhang ◽  
...  
Keyword(s):  
Blood Flow ◽  
Flow Field ◽  
Simulation Model ◽  
Vessel Wall ◽  
Wall Motion ◽  
Simulation Software ◽  
Pulsatile Blood Flow ◽  
Ultrasound Simulation ◽  
Wall Movement ◽  
Stenosed Vessel

This paper presents an ultrasound simulation model for pulsatile blood flow, modulated by the motion of a stenosed vessel wall. It aims at generating more realistic ultrasonic signals to provide an environment for evaluating ultrasound signal processing and imaging and a framework for investigating the behaviors of blood flow field modulated by wall motion. This model takes into account fluid-structure interaction, blood pulsatility, stenosis of the vessel, and arterial wall movement caused by surrounding tissue’s motion. The axial and radial velocity distributions of blood and the displacement of vessel wall are calculated by solving coupled Navier-Stokes and wall equations. With these obtained values, we made several different phantoms by treating blood and the vessel wall as a group of point scatterers. Then, ultrasound echoed signals from oscillating wall and blood in the axisymmetric stenotic-carotid arteries were computed by ultrasound simulation software, Field II. The results show better consistency with corresponding theoretical values and clinical data and reflect the influence of wall movement on the flow field. It can serve as an effective tool not only for investigating the behavior of blood flow field modulated by wall motion but also for quantitative or qualitative evaluation of new ultrasound imaging technology and estimation method of blood velocity.

Spectrum of Doppler ultrasound signals from nonstationary blood flow

1999 ◽  
Vol 46 (5) ◽  
pp. 1201-1217 ◽  
Author(s):  
C.A.C. Bastos ◽  
P.J. Fish ◽  
F. Vaz
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasound ◽  
Ultrasound Signals

Numerical simulation of pulsatile blood flow in the human left ventricle

2007 ◽  
Vol 55 (S 1) ◽  
Author(s):  
W Schiller ◽  
K Spiegel ◽  
T Schmid ◽  
H Rudorf ◽  
S Flacke ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Blood Flow ◽  
Left Ventricle ◽  
Pulsatile Blood Flow ◽  
Human Left Ventricle
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