On the ultrasonic properties of tendon

Tanya Garcia, William J. Hornof, Michael F. Insana

Research output: Contribution to journalArticlepeer-review


The strong dependence of tendon echogenicity on insonation angle is explored by analyzing echo spectra. Combining echo spectra with high-resolution images from several modalities reveals that fluid spaces surrounding fascicles and bundles are likely sources of ultrasonic scatter. Mathematical models of tendon structure are proposed to explain how the anisotropic microstructure of tendon gives rise to angle-dependent echogenicity. Echo spectra from spontaneously damaged equine tendon samples were compared with normal equine tendon and found to exhibit a dramatic decrease in anisotropic properties that appears to be related to the spatial organization and type of collagen generated during repair. Variation in echo spectra with insonation angle is a robust indicator of mechanical damage.

Original languageEnglish (US)
Pages (from-to)1787-1797
Number of pages11
JournalUltrasound in Medicine and Biology
Issue number12
StatePublished - Dec 2003
Externally publishedYes


  • Anisotropy
  • Attenuation
  • Backscatter
  • Fascicles
  • Rupture
  • Signal models

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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