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Related Experiment Videos

Ultrasonography as a method to determine tendon cross-sectional area

C Gillis1, N Sharkey, S M Stover

  • 1Veterinary Medical Teaching Hospital, University of California, Davis 95616, USA.

American Journal of Veterinary Research
|October 1, 1995
PubMed
Summary

Ultrasonography accurately measures equine superficial digital flexor tendon cross-sectional area (CSA) in vivo and in vitro. This noninvasive technique correlates well with traditional ink-blot analysis for equine tendon assessment.

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Area of Science:

  • Veterinary Medicine
  • Equine Science
  • Diagnostic Imaging

Background:

  • Accurate measurement of equine superficial digital flexor tendon (SDFT) cross-sectional area (CSA) is crucial for diagnosing and managing tendon injuries.
  • Traditional methods like ink-blot analysis are invasive and may not reflect in vivo conditions.

Purpose of the Study:

  • To determine the feasibility of ultrasonography for measuring SDFT CSA in live horses (in vivo) and post-mortem (in vitro).
  • To compare ultrasonographic CSA measurements with a traditional ink-blot analysis method.
  • To evaluate SDFT mean echogenicity using ultrasonography in vivo and in vitro.

Main Methods:

  • Ultrasonographic cross-sectional images of SDFTs from 23 horses were acquired at standardized locations.
  • Measurements were taken while horses were standing (in vivo) and after euthanasia under tension (in vitro) using a materials testing system (MTS).

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  • Ultrasonographic images were compared with morphologic CSA derived from ink-blot analysis of tendon sections.

    • Main Results:

    • Ultrasonographic CSA measurements showed strong positive linear correlations with ink-blot analysis (R2 = 0.64–0.72, P = 0.001).
    • Standing ultrasonographic CSA was consistently smaller than MTS or ink-blot measurements.
    • Mean echogenicity values were slightly higher in vivo compared to in vitro, with insignificant differences.

    Conclusions:

    • Ultrasonography is a feasible and reliable noninvasive technique for assessing SDFT CSA in horses.
    • The method demonstrates strong correlation with traditional morphologic measurements, validating its use in both live and post-mortem evaluations.
    • Ultrasonography offers a valuable tool for in vivo assessment of equine tendon structures.