Real-time shear wave elastography examination in evaluation of acute closed Achilles tendon injuries
10.13929/j.1003-3289.201903015
- Author:
Shuo LI
1
Author Information
1. Department of Ultrasound, Beijing Chao-yang Hospital, Capital Medical University
- Publication Type:Journal Article
- Keywords:
Achilles tendon;
Elasticity imaging techniques;
Ultrasonography;
Wounds and injuries
- From:
Chinese Journal of Medical Imaging Technology
2019;35(8):1155-1158
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the value of real-time shear wave elastography (SWE) technique in measurement of Achilles tendon hardness for evaluation on acute closed Achilles tendon injuries. Methods: Totally 49 patients with acute closed Achilles tendon injuries underwent high-frequency ultrasound and real-time SWE examinations. The Young's modulus and shear wave velocity (SWV) of Achilles tendon were measured and compared among complete rupture of Achilles tendon, incomplete rupture of Achilles tendon and normal Achilles tendon. Results: Both surgery and high-frequency ultrasound examination confirmed complete rupture of Achilles tendon in 36 cases. Among 13 cases of incomplete rupture of Achilles tendon confirmed with MRI, 10 cased were correctly diagnosed, while 3 cases were misdiagnosed with ultrasound. The Young's modulus of complete, incomplete rupture of Achilles tendon and normal Achilles tendon was (130.02±24.64)kPa, (281.08±84.36)kPa and (546.51±48.52)kPa, respectively, and SWV was (6.23±1.04)m/s, (9.05±0.97)m/s and (14.33±1.41)m/s, respectively. There were significant differences of Young's modulus and SWV among 3 groups and between the pairs of each 2 groups (all P<0.05). Conclusion: Ultrasound elastography can be used as an effective supplement for high-frequency ultrasound in diagnosis of acute closed Achilles tendon injuries.
