A FINITE ELEMENT VISCOELASTIC MODEL BASED ON CONSECUTIVE TRANSVERSE ULTRASOUND IMAGES OF CAROTID ARTERY

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SOLEIMANI EFFAT; MOKHTARI DIZAJI MANIJHE; FATOURAEE NASSER; SABERI HAZHIR

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Journal: Modares Mechanical Engineering Year:2017 | Volume:17 | Issue:7 Page(s): 421-430

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Title

A FINITE ELEMENT VISCOELASTIC MODEL BASED ON CONSECUTIVE TRANSVERSE ULTRASOUND IMAGES OF CAROTID ARTERY

Author(s)

SOLEIMANI EFFAT | MOKHTARI DIZAJI MANIJHE | FATOURAEE NASSER | SABERI HAZHIR | Issue Writer Certificate

Keywords

CAROTID ARTERYQ1

ULTRASOUND IMAGINGQ1

MODELINGQ2

IMAGE PROCESSINGQ2

Abstract

In the present study, a finite element model has been presented using both the in-vivo geometry of a healthy man CAROTID ARTERY, which was extracted from consecutive transverse ultrasound images and the pulse pressure waveform and Kelvin viscoelastic model parameters that were obtained from processing the consecutive longitudinal ultrasound images. Extracting the internal diameter waveform from longitudinal ultrasonic IMAGE PROCESSING and calibrating it via an exponential equation, blood pressure waveform of the CAROTID ARTERY was extracted. A Gaussian function was fitted to the blood pressure waveform. Differentiating the fitted Gaussian equation resulted in the pressure differentiation of the CAROTID ARTERY over the cardiac cycle. Kelvin viscoelastic parameters were estimated using an optimization method. Finite element model of the CAROTID ARTERY was reconstructed in ADINA software and implemented by loading over three cardiac cycles. To validate the model, radial displacement waveform resulted from finite element model and that resulted from IMAGE PROCESSING were compared in nearly the same spatial position. Percentage of the mean proportional differences between the radial displacement resulted from finite element model and that from consecutive ultrasound images was 9.3.Since the appropriate mechanical models can calculate true stress/strain distribution of the CAROTID ARTERY wall and plaque and distinguish the location of the plaque areas prone to vulnerability; and because of the capability of the ultrasonic model proposed in this study for describing the pulsatile behavior of artery wall accurately, it is expected that the introduced dynamic model will be applied for accurate evaluation of the arterial disease.

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APA: Copy

SOLEIMANI, EFFAT, MOKHTARI DIZAJI, MANIJHE, FATOURAEE, NASSER, & SABERI, HAZHIR. (2017). A FINITE ELEMENT VISCOELASTIC MODEL BASED ON CONSECUTIVE TRANSVERSE ULTRASOUND IMAGES OF CAROTID ARTERY. MODARES MECHANICAL ENGINEERING, 17(7 ), 421-430. SID. https://sid.ir/paper/179370/en

Vancouver: Copy

SOLEIMANI EFFAT, MOKHTARI DIZAJI MANIJHE, FATOURAEE NASSER, SABERI HAZHIR. A FINITE ELEMENT VISCOELASTIC MODEL BASED ON CONSECUTIVE TRANSVERSE ULTRASOUND IMAGES OF CAROTID ARTERY. MODARES MECHANICAL ENGINEERING[Internet]. 2017;17(7 ):421-430. Available from: https://sid.ir/paper/179370/en

IEEE: Copy

EFFAT SOLEIMANI, MANIJHE MOKHTARI DIZAJI, NASSER FATOURAEE, and HAZHIR SABERI, “A FINITE ELEMENT VISCOELASTIC MODEL BASED ON CONSECUTIVE TRANSVERSE ULTRASOUND IMAGES OF CAROTID ARTERY,” MODARES MECHANICAL ENGINEERING, vol. 17, no. 7 , pp. 421–430, 2017, [Online]. Available: https://sid.ir/paper/179370/en

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