Poor_reprod Cercignani et al 2017.pdf (731.9 kB)
Poor reproducibility of compression elastography in the Achilles tendon: same day and consecutive day measurements.
journal contribution
posted on 2023-06-09, 13:09 authored by Catherine Payne, Nick Webborn, Peter Watt, Mara CercignaniOBJECTIVE To determine the reproducibility of compression elastography (CE) when measuring strain data, a measure of stiffness of the human Achilles tendon in vivo, over consecutive measures, consecutive days and when using different foot positions. MATERIALS AND METHODS Eight participants (4 males, 4 females; mean age 25.5?±?2.51 years, range 21-30 years; height 173.6?±?11.7 cm, range 156-189 cm) had five consecutive CE measurements taken on one day and a further five CE measures taken, one per day, at the same time of day, every day for a consecutive 5-day period. These 80 measurements were used to assess both the repeatability and reproducibility of the technique. Means, standard deviations, coefficient of variation (CV), Pearson correlation analysis (R) and intra-class correlation coefficients (ICC) were calculated. RESULTS For CE data, all CVs were above 53%, R values indicated no-to-weak correlations between measures at best (range 0.01-0.25), and ICC values were all classified in the poor category (range 0.00-0.11). CVs for length and diameter measures were acceptably low indicating a high level of reliability. CONCLUSIONS Given the wide variation obtained in the CE results, it was concluded that CE using this specific system has a low level of reproducibility for measuring the stiffness of the human Achilles tendon in vivo over consecutive days, consecutive measures and in different foot positions.
History
Publication status
- Published
File Version
- Accepted version
Journal
Skeletal RadiologyISSN
0364-2348Publisher
Springer VerlagExternal DOI
Issue
7Volume
46Page range
889-895Department affiliated with
- BSMS Neuroscience Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-05-03First Open Access (FOA) Date
2018-05-03First Compliant Deposit (FCD) Date
2018-05-03Usage metrics
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