16 research outputs found

    Stereology of the thyroid gland in Indo-Pacific bottlenose dolphin (Tursiops aduncus) in comparison with human (Homo sapiens) : quantitative and functional implications

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    Author name used in this publication: Kot, Brian Chin Wing.Author name used in this publication: Lau, Thomas Yue HuenVersion of RecordPublishe

    A comparison of portable ultrasound and fully-equipped clinical ultrasound unit in the thyroid size measurement of the Indo-Pacific bottlenose dolphin

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    Author name used in this publication: Michael T. C. YingAuthor name used in this publication: Fiona M. Brook2011-2012 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

    Elastic modulus of muscle and tendon with shear wave ultrasound elastography : variations with different technical settings

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    Author name used in this publication: Brian Chin Wing KotVersion of RecordPublishe

    Reproducibility of shear wave elastography measuresof the Achilles tendon.

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    OBJECTIVE To assess the reproducibility of shear wave elastography (SWE) measures in the Achilles tendon (AT) in vivo. MATERIALS AND METHODS Shear wave velocity (SWV) of 14 healthy volunteers [7 males, 7 females; mean age 26.5 ± 3.8 years, mean height 171.6 ± 10.9 cm, mean Victorian Institute of Sports Assessment Achilles questionnaire (VISA-A) score 99.4 ± 1.2] was measured with the foot relaxed and fixed at 90°. Data were collected over five consecutive measures and 5 consecutive days. RESULTS Mean SWV values ranged from 7.91 m/s-9.56 m/s ± 0.27-0.50 m/s. Coefficient of variation (CV), correlations and intra-class correlation coefficient (ICC) scores ranged from 2.9%-6.3%, 0.4-0.7 and 0.54-0.85 respectively. No significant differences were noted for longitudinal or transverse data with respect to protocol or time and no significant differences were noted for foot position in transverse data. Significant differences in SWV values were noted between foot positions for longitudinal scanning (p = <0.05), with a relaxed foot position providing SWV values on average 0.47 m/s faster than a fixed position. Increased reproducibility was obtained with the foot relaxed. ICC between operators was 0.70 for transverse and 0.80 for longitudinal scanning. CONCLUSIONS Reproducible SWE measures were obtained over a 1-h period as well as a period of 5 consecutive days with more reliable measures obtained from a longitudinal plane using a relaxed foot position. SWE also has a high level of agreement between operators making SWE a reproducible technique for quantitatively assessing the mechanical properties of the human AT in vivo

    Accuracy and reliability of cetacean cranial measurements using computed tomography three dimensional volume rendered images

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    201810_a bcma; 201805 bcrcVersion of RecordPublishe
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