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In Vivo Measures of Shear Wave Speed as a Predictor of Tendon Elasticity and Strength.
- Source :
-
Ultrasound in medicine & biology [Ultrasound Med Biol] 2015 Oct; Vol. 41 (10), pp. 2722-30. Date of Electronic Publication: 2015 Jul 26. - Publication Year :
- 2015
-
Abstract
- The purpose of this study was to assess the potential for ultrasound shear wave elastography (SWE) to measure tissue elasticity and ultimate stress in both intact and healing tendons. The lateral gastrocnemius (Achilles) tendons of 41 New Zealand white rabbits were surgically severed and repaired with growth factor coated sutures. SWE imaging was used to measure shear wave speed (SWS) in both the medial and lateral tendons pre-surgery, and at 2 and 4 wk post-surgery. Rabbits were euthanized at 4 wk, and both medial and lateral tendons underwent mechanical testing to failure. SWS significantly (p < 0.001) decreased an average of 17% between the intact and post-surgical state across all tendons. SWS was significantly (p < 0.001) correlated with both the tendon elastic modulus (r = 0.52) and ultimate stress (r = 0.58). Thus, ultrasound SWE is a potentially promising non-invasive technology for quantitatively assessing the mechanical integrity of pre-operative and post-operative tendons.<br /> (Published by Elsevier Inc.)
- Subjects :
- Animals
Computer Simulation
Elastic Modulus
Female
Image Interpretation, Computer-Assisted methods
Male
Rabbits
Reproducibility of Results
Scattering, Radiation
Sensitivity and Specificity
Shear Strength
Tendon Injuries surgery
Tendons surgery
Tensile Strength
Ultrasonic Waves
Wound Healing physiology
Models, Biological
Tendon Injuries diagnostic imaging
Tendon Injuries physiopathology
Tendons diagnostic imaging
Tendons physiology
Ultrasonography methods
Subjects
Details
- Language :
- English
- ISSN :
- 1879-291X
- Volume :
- 41
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- Ultrasound in medicine & biology
- Publication Type :
- Academic Journal
- Accession number :
- 26215492
- Full Text :
- https://doi.org/10.1016/j.ultrasmedbio.2015.06.008