Ultrasound assessment of degenerative muscle sarcopenia: the University of Barcelona ultrasound scoring system for sarcopenia
Errata to this article were published (RMD Open, Feb 2023 ↗ · Feb 2023 ↗)
Authors' conclusion
MSUS measures of MT and CSA and the novel MSUS scoring system for degenerative muscle changes in sarcopenia was found to be reliable and strongly associated with histological findings.
Study context
- Population
- Ten cryopreserved limbs of 10 cadavers aged 68–91 years; rectus femoris and biceps brachii
- Participants
- 10 cryopreserved limbs
- Outcome
- Intraobserver and interobserver reliability of US MT and CSA (ICC) and of a semiquantitative MSUS sarcopenia morphology score (grade 1 normal, 2 moderate, 3 severe changes; Cohen's κ)
Methodological detailscadaveric, intraobserver and interobserver reliability, concurrent validity vs histology
- Cadaveric
- Intraobserver and interobserver reliability
- Concurrent validity vs histology
Performance
As reported in the abstract
Reliability of MSUS measures
Intra- and interobserver reliability of musculoskeletal ultrasound (MSUS) MT and cross-sectional area (CSA), intraclass correlation coefficient (ICC)
≥0.93
MSUS scoring system intraobserver reliability, κ
1.0
MSUS scoring system interobserver reliability, κ
0.85
Further findings
Reliability of histological scorings
- Intraobserver, κ
- ≥0.85
- Interobserver, mean κ
- 0.70
Concurrent validity: histology vs MSUS scoring systems
- ICC
- 0.92
Original publication
Ultrasound assessment of degenerative muscle sarcopenia: the University of Barcelona ultrasound scoring system for sarcopenia. RMD Open. Published 27 January 2023. doi:10.
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