Pulse Wave Imaging (PWI) and arterial stiffness measurement of the human carotid artery: An in vivo feasibility study

Li, Ronny X.; Luo, Jianwen; Khamdaeng, Tipapon; Konofagou, Elisa E.

doi:10.1109/ultsym.2011.0444

Cited by 3 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Clinically, PWV is measured using pulse tonometer (11) based on peripheral pulse pressure, which is a poor reflection of central aortic pressure. The current analysis to obtain PWV using MRI is consistent with previously published results (37,38). However, it is known that PWV is influenced by variation in the heart rate (39) and is usually higher in old people; but in this study (ie, in this small cohort of volunteers) we did not find any correlation in increase in heart rate with increase in age.…”

Section: Discussionsupporting

confidence: 91%

Quantification of aortic stiffness using MR Elastography and its comparison to MRI‐based pulse wave velocity

Damughatla

Raterman

Sharkey-Toppen

et al. 2013

Magnetic Resonance Imaging

View full text Add to dashboard Cite

Purpose To determine the correlation in abdominal aortic stiffness obtained using magnetic resonance elastography (MRE) (μMRE) and MRI-based pulse wave velocity (PWV) shear stiffness (μPWV) estimates in normal volunteers of varying age; and also to determine the correlation between μMRE and μPWV. Methods In-vivo aortic MRE and MRI were performed on 21 healthy volunteers with ages ranging from 18 to 65 years to obtain wave and velocity data along the long-axis of the abdominal aorta. The MRE wave images were analyzed to obtain mean stiffness, and the phase contrast images were analyzed to obtain PWV measurements and indirectly estimate stiffness values from Moens-Korteweg equation. Results Both μMRE and μPWV measurements increased with age, demonstrating linear correlations with R2 values of 0.81 and 0.67, respectively. Significant difference (p≤0.001) in mean μMRE and μPWV between young and old healthy volunteers was also observed. Furthermore, a poor linear correlation of R2 value of 0.43 was determined between μMRE and μPWV in initial pool of volunteers. Conclusion The results of this study indicate linear correlations between μMRE and μPWV with normal aging of the abdominal aorta. Significant differences in mean μMRE and μPWV between young and old healthy volunteers were observed.

show abstract

Section: Discussionsupporting

confidence: 91%

Quantification of aortic stiffness using MR Elastography and its comparison to MRI‐based pulse wave velocity

Damughatla

Raterman

Sharkey-Toppen

et al. 2013

Magnetic Resonance Imaging

View full text Add to dashboard Cite

show abstract

“…Traditionally, velocity maps or color layered on video are used for this purpose [11], [22], [23]. Concerning complex phenomena, reflected waves, bulk waves (propagation of a longitudinal motion) and local distortion can be studied [14], [23]. In fact, longitudinal motion is related to the depth into the tissue and several layered longitudinal patterns are displayed.…”

Section: Resultsmentioning

confidence: 99%

Video Magnification Applied in Ultrasound

Perrot

Salles²,

Vray

et al. 2019

IEEE Trans. Biomed. Eng.

View full text Add to dashboard Cite

show abstract

Estimation of arterial wall motion using ultrafast imaging with transverse oscillations: Phantom study

Salles

Vray

Liebgott

et al. 2014

2014 IEEE International Ultrasonics Symposium

View full text Add to dashboard Cite

This paper presents an experimental study of two dimensional (2D) tissue motion estimation in ultrafast imaging using transverse oscillation and a phase based motion estimation. In this study, the motion is measured all along the wall of an artery phantom. The method employs ultrafast imaging which has become a world-wide used modality, with several promising clinical application, transverse oscillations technics which allow improving the motion estimation in transverse direction i.e. perpendicular to the beam axis, and a phase-based motion estimation. The experiment in vitro results show that the motion estimation is very reproducible all along the phantom wall, and even if the wall displacement estimable are very small ( 0.001 pixel ), our method is able to estimate the 2D motion.

show abstract

Pulse Wave Imaging (PWI) and arterial stiffness measurement of the human carotid artery: An in vivo feasibility study

Cited by 3 publications

References 12 publications

Quantification of aortic stiffness using MR Elastography and its comparison to MRI‐based pulse wave velocity

Quantification of aortic stiffness using MR Elastography and its comparison to MRI‐based pulse wave velocity

Video Magnification Applied in Ultrasound

Estimation of arterial wall motion using ultrafast imaging with transverse oscillations: Phantom study

Contact Info

Product

Resources

About