In vitro high-frame-rate contrast-enhanced ultrasound particle image velocimetry in a carotid artery stent

2018 ◽  
Author(s):  
Astrid M. Hoving ◽  
Evelien E. de Vries ◽  
Jason Voorneveld ◽  
Erik Groot Jebbink ◽  
Julia Mikhal ◽  
...  
Keyword(s):  
Particle Image Velocimetry ◽  
Carotid Artery ◽  
Particle Image ◽  
Frame Rate ◽  
Contrast Enhanced Ultrasound ◽  
High Frame Rate ◽  
Carotid Artery Stent ◽  
Contrast Enhanced ◽  
Image Velocimetry

scholarly journals High-Frame-Rate Contrast-enhanced US Particle Image Velocimetry in the Abdominal Aorta: First Human Results

Radiology ◽  
2018 ◽  
Vol 289 (1) ◽  
pp. 119-125 ◽  
Author(s):  
Stefan Engelhard ◽  
Jason Voorneveld ◽  
Hendrik J. Vos ◽  
Jos J. M. Westenberg ◽  
Frank J. H. Gijsen ◽  
...  
Keyword(s):  
Particle Image Velocimetry ◽  
Abdominal Aorta ◽  
Particle Image ◽  
Frame Rate ◽  
High Frame Rate ◽  
Contrast Enhanced ◽  
Image Velocimetry

scholarly journals High-Frame-Rate Echo-Particle Image Velocimetry Can Measure the High-Velocity Diastolic Flow Patterns

2019 ◽  
Vol 12 (4) ◽  
Author(s):  
Jason Voorneveld ◽  
Lana B.H. Keijzer ◽  
Mihai Strachinaru ◽  
Daniel J. Bowen ◽  
Jeffrey S.L. Goei ◽  
...  
Keyword(s):  
Particle Image Velocimetry ◽  
High Velocity ◽  
Particle Image ◽  
Flow Patterns ◽  
Frame Rate ◽  
High Frame Rate ◽  
Diastolic Flow ◽  
Image Velocimetry

Abstract 13873: Quantitative Characteristics of Left Ventricular Vortex Flow in the Short and Long Axis Views by High Frame Rate Echocardiographic Particle Image Velocimetry

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Haruhiko Abe ◽  
Kasumi Masuda ◽  
Toshihiko Asanuma ◽  
Hikaru Koriyama ◽  
Yukihiro Koretsune ◽  
...  
Keyword(s):  
Particle Image Velocimetry ◽  
Vortex Flow ◽  
Cardiac Cycle ◽  
Particle Image ◽  
Left Ventricular ◽  
Frame Rate ◽  
Vortex Strength ◽  
High Frame Rate ◽  
Image Velocimetry ◽  
Quantitative Characteristics

Background: Vortex flow in the left ventricle (LV) has three-dimensional structure and plays an important role in avoiding excessive dissipation of energy. However, quantitative characteristics of long and short axis (LAX and SAX) vortex flow have not been elucidated. Echocardiographic particle image velocimetry (Echo-PIV) is an emerging technique to evaluate instantaneous vortical flow inside the LV. However, it has a limitation of underestimation of high velocities due to limited frame rate. Moreover, previous investigations have mainly focused on vortex from LAX view. Therefore, we used high frame rate Echo-PIV to quantitate vortex flow in SAX as well as in LAX views to understand characteristics of vortex three-dimensionally. Methods: Echocardiographic contrast images of the LV SAX and LAX were acquired from 8 open-chest healthy dogs. The acquisition frame rate was 135 frames per second and the contrast bubbles density was optimized for blood flow analysis. Echo-PIV analysis was performed off-line by using commercially available software and vorticity data were calculated in the region of interest (ROI) throughout the cardiac cycle. ROI was manually placed on the vortex. Vortex strength was defined as the averaged vorticity within the ROI. Results: In SAX, counterclockwise vortex was seen near the anterior wall, and in LAX clockwise vortex was seen in the anterior mid-ventricle. Both in SAX and LAX views, vortex strength showed significant phasic variations being largest in isovolumic contraction (vortex strength, SAX 9.2±2.3/s, p<0.001; LAX -12.0±2.4/s, p<0.001), and smallest in isovolumic relaxation (SAX -0.8±0.8/s, p<0.001; LAX -1.9±1.9/s, p<0.001). Conclusion: High frame rate Echo-PIV successfully demonstrated a complicated pattern of intracardiac vortex with phasic variation of its strength throughout a cardiac cycle in both SAX and LAX. This method may be a useful tool to assess physiological role of vortex in the flow dynamics.

High-frame-rate, high-resolution Cinematographic Particle Image Velocimetry

1997 ◽  
Author(s):  
Jose Gilarranz ◽  
Karandeep Singh ◽  
Jeonghwan Ko ◽  
Othon Rediniotis ◽  
Andrew Kurdila ◽  
...  
Keyword(s):  
Particle Image Velocimetry ◽  
High Resolution ◽  
Particle Image ◽  
Frame Rate ◽  
High Frame Rate ◽  
Image Velocimetry

scholarly journals High Frame Rate Ultrasound Particle Image Velocimetry for Estimating High Velocity Flow Patterns in the Left Ventricle

2018 ◽  
Vol 65 (12) ◽  
pp. 2222-2232 ◽  
Author(s):  
Jason Voorneveld ◽  
Aswin Muralidharan ◽  
Timothy Hope ◽  
Hendrik J. Vos ◽  
Pieter Kruizinga ◽  
...  
Keyword(s):  
Particle Image Velocimetry ◽  
Left Ventricle ◽  
High Velocity ◽  
Particle Image ◽  
Flow Patterns ◽  
Frame Rate ◽  
High Frame Rate ◽  
High Velocity Flow ◽  
Image Velocimetry ◽  
Velocity Flow

scholarly journals Meso-Scale Particle Image Velocimetry Studies of Neurovascular Flows In Vitro

10.3791/58902 ◽  
2018 ◽  
Author(s):  
Ryan A. Peck ◽  
Edver Bahena ◽  
Reza Jahan ◽  
Guillermo Aguilar ◽  
Hideaki Tsutsui ◽  
...  
Keyword(s):  
Particle Image Velocimetry ◽  
Particle Image ◽  
Image Velocimetry ◽  
Scale Particle ◽  
Meso Scale
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