Experimental Study on the Pulse Wave Propagation in a Human Artery Model

Yamamoto, Yoshiyuki; Saito, Masashi; Ikenaga, Yuki; Matsukawa, Mami; Watanabe, Yoshiaki; Furuya, Mio; Asada, Takaaki

doi:10.7567/jjap.50.07hf12

Cited by 6 publications

(8 citation statements)

References 12 publications

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“…When a bifurcation tube is fabricated, the reflection coefficient R c should be as low as possible. If the radius changes caused by the pressure were small, the reflection coefficient for a perfect bifurcation is approximately defined as [27][28][29]…”

Section: Fabrication Of Bifurcation Tube and Arterial Treementioning

confidence: 99%

“…In the case of actual arterial bifurcations in the brain, the wave reflection at a bifurcation point does not occur. 2,27,33) As for the bifurcation tubes, the reflection coefficient R c depends on the Young's modulus, diameter, and thickness of the mother and daughter tubes, as shown in Eq. ( 3).…”

Section: Fabrication Of Bifurcation Tube and Arterial Treementioning

confidence: 99%

“…33) Since the pressure wave was not attenuated at a bifurcation point in the experiments, we assumed that the pressure wave propagation at a bifurcation point was ideal. 27,33) 3. Results and discussion…”

Section: D Theoretical Modelmentioning

confidence: 99%

“…The results of previous experiments verified that the pulse waveform changed owing to arterial stiffness and most of the reflected waves measured at the common carotid artery originated from the vascular beds in the brain. [27][28][29] However, it was difficult to observe the effects of stenosis in cerebral arteries on the pulse waveform owing to the other reflected waves from vascular beds. We still have to investigate whether a critical stenosis in cerebral arteries can change the pulse waveform.…”

Section: Introductionmentioning

confidence: 99%

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Experimental study on the pressure wave propagation in the artificial arterial tree in brain

Shimada¹,

Tsurusaki²,

Iwase³

et al. 2018

Jpn. J. Appl. Phys.

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A pulse wave measurement is effective for the early detection of arteriosclerosis. The pulse wave consists of incident and reflected waves. The reflected wave of the pulse wave measured at the left common carotid artery seems to originate from the vascular beds in the brain. The aim of this study is to know if the reflected waves from the occlusions in cerebral arteries can affect the pulse waveform. The artificial arterial tree in the brain was therefore fabricated using polyurethane tubes. After investigating the effects of the bifurcation angle on the pulse waveform, we attempted to confirm whether the reflected waves from occlusions in the artificial arterial tree in the brain can be experimentally measured at the left common carotid artery. Results indicate that the bifurcation angle did not affect the pulse waveform, and that the reflected wave from an occlusion with a diameter of more than 1 mm in the brain could be observed.

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Section: Fabrication Of Bifurcation Tube and Arterial Treementioning

confidence: 99%

Section: Fabrication Of Bifurcation Tube and Arterial Treementioning

confidence: 99%

Section: D Theoretical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental study on the pressure wave propagation in the artificial arterial tree in brain

Shimada¹,

Tsurusaki²,

Iwase³

et al. 2018

Jpn. J. Appl. Phys.

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show abstract

“…The pulse wave velocity (PWV) is a useful marker for noninvasive evaluation of the elastic property of the arterial wall. [1][2][3][4][5] In conventional methods, PWV is measured between two points apart from each other by several tens of centimeters. To evaluate more regional PWV, the frame rate in ultrasound imaging was increased by reducing the density of scan lines, 6) using ECG gating, 7) and introducing highframe-rate imaging with plane wave transmission.…”

mentioning

confidence: 99%

Evaluation of accuracy of phase-sensitive method in estimation of axial motion and deformation with fluid-structure interaction analysis

Ishikawa¹,

Mozumi²,

Omura³

et al. 2021

Jpn. J. Appl. Phys.

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Accuracies of ultrasonic methods for estimation of motion/deformation should be evaluated, but such evaluation in real experiments is not easy because it is difficult to know the true distribution of motion/deformation in complex geometry, such as an atherosclerotic plaque model. In the present study, numerical simulation was performed to obtain ultrasonic echo signals from a deforming plaque model. The accuracies of our phase-sensitive 2D motion estimator in estimation of velocity and strain rate were evaluated to be 22.8% and 27.6%, respectively, and the spatial features of the estimated velocity and strain rate distributions were well corresponded to the true distributions.

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Quantum Dot Nanoarrays: Self‐Assembly With Single‐Particle Control and Resolution

Abramson¹,

Palma²,

Wind³

et al. 2012

Advanced Materials

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Experimental Study on the Pulse Wave Propagation in a Human Artery Model

Cited by 6 publications

References 12 publications

Experimental study on the pressure wave propagation in the artificial arterial tree in brain

Experimental study on the pressure wave propagation in the artificial arterial tree in brain

Evaluation of accuracy of phase-sensitive method in estimation of axial motion and deformation with fluid-structure interaction analysis

Quantum Dot Nanoarrays: Self‐Assembly With Single‐Particle Control and Resolution

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