Anatomical flow phantoms of the nonplanar carotid bifurcation, Part II: experimental validation with Doppler ultrasound

S. Meagher, T. Poepping, K. Ramnarine, R.A. Black, P.R. Hoskins

    Research output: Contribution to journalArticle

    29 Citations (Scopus)

    Abstract

    A nonplanar wall-less anatomical flow phantom of a healthy human carotid artery is described, the construction of which is based on a lost-core technique described in the companion paper (Part I) by Watts et al. (2006). The core was made by rapid prototyping of an idealized three-dimensional computer model of the carotid artery. Flow phantoms were built using these idealized non planar carotid artery bifurcations. Physiologically realistic flow waveforms were produced with resistance index values of 0.75, 0.72 and 0.63 in the common, external and internal carotid artery branches, respectively. Distension of the common carotid using M-mode imaging was found to be at 10% of diameter. Although differences in vessel diameter between the phantom and that of the original computer model were statistically significant (p < 0.05), there was no difference (p > 0.05) in measurements made on the lost-cores and those obtained by B-mode ultrasound on the resulting flow phantoms. In conclusion, it was possible to reliably reproduce geometrically similar anatomical flow phantoms that are capable of producing realistic physiological flow patterns and distensions.
    LanguageEnglish
    Pages303-310
    Number of pages7
    JournalUltrasound in Medicine and Biology
    Volume33
    Issue number2
    DOIs
    Publication statusPublished - 2007

    Fingerprint

    Doppler Ultrasonography
    Carotid Arteries
    arteries
    Computer Simulation
    External Carotid Artery
    Common Carotid Artery
    Internal Carotid Artery
    rapid prototyping
    vessels
    flow distribution
    waveforms

    Keywords

    • anatomical flow phantom
    • carotid arteries
    • doppler ultrasound
    • bioengineering
    • biomedical science

    Cite this

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    abstract = "A nonplanar wall-less anatomical flow phantom of a healthy human carotid artery is described, the construction of which is based on a lost-core technique described in the companion paper (Part I) by Watts et al. (2006). The core was made by rapid prototyping of an idealized three-dimensional computer model of the carotid artery. Flow phantoms were built using these idealized non planar carotid artery bifurcations. Physiologically realistic flow waveforms were produced with resistance index values of 0.75, 0.72 and 0.63 in the common, external and internal carotid artery branches, respectively. Distension of the common carotid using M-mode imaging was found to be at 10{\%} of diameter. Although differences in vessel diameter between the phantom and that of the original computer model were statistically significant (p < 0.05), there was no difference (p > 0.05) in measurements made on the lost-cores and those obtained by B-mode ultrasound on the resulting flow phantoms. In conclusion, it was possible to reliably reproduce geometrically similar anatomical flow phantoms that are capable of producing realistic physiological flow patterns and distensions.",
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    Anatomical flow phantoms of the nonplanar carotid bifurcation, Part II: experimental validation with Doppler ultrasound. / Meagher, S.; Poepping, T.; Ramnarine, K.; Black, R.A.; Hoskins, P.R.

    In: Ultrasound in Medicine and Biology, Vol. 33, No. 2, 2007, p. 303-310.

    Research output: Contribution to journalArticle

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