Feasibility of pulse wave velocity estimation from low frame rate US sequences in vivo

2017 ◽  
Author(s):  
Maria Zontak ◽  
Matthew Bruce ◽  
Michelle Hippke ◽  
Alan Schwartz ◽  
Matthew O'Donnell
Keyword(s):  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Velocity Estimation ◽  
Frame Rate ◽  
Low Frame Rate

Assessment of Local Pulse Wave Velocity in Arteries Using 2D Distension Waveforms

2001 ◽  
Vol 23 (4) ◽  
pp. 199-215 ◽  
Author(s):  
Jan M. Meinders ◽  
Lilian Kornet ◽  
Peter J. Brands ◽  
Arnold P.G. Hoeks
Keyword(s):  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Tracking System ◽  
Frame Rate ◽  
Spatial Gradient ◽  
Total Width ◽  
Spatial Gradients ◽  
High Concordance

The reciprocal of the arterial pulse wave velocity contains crucial information about the mechanical characteristics of the arterial wall but is difficult to assess noninvasively in vivo. In this paper, a new method to assess local pulse wave velocity (PWV) is presented. To this end, multiple adjacent distension waveforms are determined simultaneously along a short arterial segment, using a single 2D-vessel wall tracking system with a high frame rate (651 Hz). Each B-mode image consists of 16 echo lines spanning a total width of 15.86 mm. Dedicated software has been developed to extract the end-diastolic diameter from the B-mode image and the distension waveforms from the underlying radiofrequency (rf) information for each echo-line. The PWV is obtained by determining the ratio of the temporal and spatial gradient of adjacent distension velocity waveforms. The proposed method is verified in a phantom and in the common carotid artery (CCA) of humans. Phantom experiments show a high concordance between the PWV obtained from 2D distension velocity waveforms (4.21 ± 0.02 m/s) and the PWV determined using two pressure catheters (4.26 ± 0.02 m/s). Assuming linear spatial gradients, the PWV can also be obtained in vivo for CCA and averages to 5.5 ± 1.5 m/s (intersubject variation, n = 23), which compares well to values found in literature. Furthermore, intrasubject PWV compares well with those calculated using the Bramwell-Hill equation. It can be concluded that the PWV can be obtained from the spatial and temporal gradient if the spatial gradient is linear over the observed length of the artery, i.e. the artery should be homogenous in diameter and distension and the influence of reflections must be small.

Measurement of regional pulse wave velocity using very high frame rate ultrasound

Choonpa Igaku ◽  
2015 ◽  
Vol 42 (6) ◽  
pp. 701-709
Author(s):  
Hideyuki HASEGAWA ◽  
Kazue HONGO ◽  
Hiroshi KANAI
Keyword(s):  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Frame Rate ◽  
High Frame Rate ◽  
Very High

scholarly journals Comparative study of methodologies for pulse wave velocity estimation

2008 ◽  
Vol 22 (10) ◽  
pp. 669-677 ◽  
Author(s):  
P Salvi ◽  
E Magnani ◽  
F Valbusa ◽  
D Agnoletti ◽  
C Alecu ◽  
...  
Keyword(s):  
Pulse Wave Velocity ◽  
Comparative Study ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Velocity Estimation

A Comparative Study of Methodologies for Pulse Wave Velocity Estimation

2007 ◽  
Vol 14 (3) ◽  
pp. 145-196
Author(s):  
E Magnani ◽  
F Valbusa ◽  
D Agnoletti ◽  
M Rossi ◽  
C Bernabini ◽  
...  
Keyword(s):  
Pulse Wave Velocity ◽  
Comparative Study ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Velocity Estimation

scholarly journals In vivo measurement of local aortic pulse-wave velocity in mice with MR microscopy at 17.6 tesla

2009 ◽  
Vol 61 (6) ◽  
pp. 1293-1299 ◽  
Author(s):  
Volker Herold ◽  
Marco Parczyk ◽  
Philipp Mörchel ◽  
Christian H. Ziener ◽  
Gert Klug ◽  
...  
Keyword(s):  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Aortic Pulse Wave Velocity ◽  
Mr Microscopy ◽  
In Vivo Measurement
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