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Inter-rater and intra-rater reliability of ultrasound imaging for measuring quadriceps muscle and non-contractile tissue thickness of the anterior thigh

Inter-rater and intra-rater reliability of ultrasound imaging for measuring quadriceps muscle and non-contractile tissue thickness of the anterior thigh
Inter-rater and intra-rater reliability of ultrasound imaging for measuring quadriceps muscle and non-contractile tissue thickness of the anterior thigh
Objective: To determine intra-rater and inter-rater reliability of ultrasound imaging for measuring muscle and non-contractile (subcutaneous fat and perimuscular fascia) tissue thickness of the anterior thigh. Approach: Ultrasound imaging has been used for clinical research to assess the morphology and cross-sectional area of muscles and other musculoskeletal structures. Repeatability of measurements with the ultrasound imaging technique between operators and test re-test reliability are important and need to be established for specific muscles. Twenty-four healthy moderately active adults (aged 36–64 years), underwent B-mode ultrasound imaging by two investigators. The anterior thighs were scanned at a site two-thirds of the distance between the antero-superior iliac spine and the superior pole of the patella. Intraclass Correlation Coefficients (ICCs, model 3, 1 for inter-rater and 3, 2 for intra-rater reliability between-days) with 95% confidence intervals (CI) was used to assess reliability. Main results: Inter-rater reliability of ultrasound imaging measurements were ICC3, 1 of 0.98 (95% CI: 0.95–0.99) for muscle thickness, 0.81 (95% CI: 0.60–0.91) for subcutaneous fat, 0.78 (95% CI: 0.56–0.90) for non-contractile tissue (subcutaneous fat combined with perimuscular fascia), and 0.70 (95% CI: 0.42–0.86) for perimuscular fascia. Intra-rater reliability values were ICC3, 2 0.96 (95% CI: 0.90–0.98) for muscle thickness, 0.99 (95% CI: 0.97–0.99) for subcutaneous fat, 0.98 (95% CI: 0.96–0.99) for non-contractile tissue, and −0.02 (95% CI: −0.41–0.38) for perimuscular fascia. Significance: The present findings indicate very high inter-rater and intra-rater reliability of ultrasound imaging thickness measurements of the quadriceps muscles and non-contractile tissue of the anterior thigh, while perimuscular fascia measurements alone were not reliable between days.
Mechelli, Filippo
1fe0c9ce-35c9-4c2b-9ece-c49a31df963a
Arendt-Nielsen, Lars
ec85b3fd-1056-4e12-b38e-bee06e77a9a5
Stokes, Maria
71730503-70ce-4e67-b7ea-a3e54579717f
Agyapong-Badu, Sandra
289ca10b-cc82-4bc4-9a57-ab5cc7cc62d0
Mechelli, Filippo
1fe0c9ce-35c9-4c2b-9ece-c49a31df963a
Arendt-Nielsen, Lars
ec85b3fd-1056-4e12-b38e-bee06e77a9a5
Stokes, Maria
71730503-70ce-4e67-b7ea-a3e54579717f
Agyapong-Badu, Sandra
289ca10b-cc82-4bc4-9a57-ab5cc7cc62d0

Mechelli, Filippo, Arendt-Nielsen, Lars, Stokes, Maria and Agyapong-Badu, Sandra (2019) Inter-rater and intra-rater reliability of ultrasound imaging for measuring quadriceps muscle and non-contractile tissue thickness of the anterior thigh. Biomedical Physics & Engineering Express, 5 (3). (doi:10.1088/2057-1976/ab102f).

Record type: Article

Abstract

Objective: To determine intra-rater and inter-rater reliability of ultrasound imaging for measuring muscle and non-contractile (subcutaneous fat and perimuscular fascia) tissue thickness of the anterior thigh. Approach: Ultrasound imaging has been used for clinical research to assess the morphology and cross-sectional area of muscles and other musculoskeletal structures. Repeatability of measurements with the ultrasound imaging technique between operators and test re-test reliability are important and need to be established for specific muscles. Twenty-four healthy moderately active adults (aged 36–64 years), underwent B-mode ultrasound imaging by two investigators. The anterior thighs were scanned at a site two-thirds of the distance between the antero-superior iliac spine and the superior pole of the patella. Intraclass Correlation Coefficients (ICCs, model 3, 1 for inter-rater and 3, 2 for intra-rater reliability between-days) with 95% confidence intervals (CI) was used to assess reliability. Main results: Inter-rater reliability of ultrasound imaging measurements were ICC3, 1 of 0.98 (95% CI: 0.95–0.99) for muscle thickness, 0.81 (95% CI: 0.60–0.91) for subcutaneous fat, 0.78 (95% CI: 0.56–0.90) for non-contractile tissue (subcutaneous fat combined with perimuscular fascia), and 0.70 (95% CI: 0.42–0.86) for perimuscular fascia. Intra-rater reliability values were ICC3, 2 0.96 (95% CI: 0.90–0.98) for muscle thickness, 0.99 (95% CI: 0.97–0.99) for subcutaneous fat, 0.98 (95% CI: 0.96–0.99) for non-contractile tissue, and −0.02 (95% CI: −0.41–0.38) for perimuscular fascia. Significance: The present findings indicate very high inter-rater and intra-rater reliability of ultrasound imaging thickness measurements of the quadriceps muscles and non-contractile tissue of the anterior thigh, while perimuscular fascia measurements alone were not reliable between days.

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Mechelli_et_al_2019_USI_QuadsReliab_Accepted15March2019 - Accepted Manuscript
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Mechelli et al 2019_USI_QuadsReliab_Accepted15March2019
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More information

Accepted/In Press date: 15 March 2019
e-pub ahead of print date: 28 March 2019

Identifiers

Local EPrints ID: 430580
URI: https://eprints.soton.ac.uk/id/eprint/430580
PURE UUID: 1ef83560-53ba-4559-b331-891d356e8be3
ORCID for Maria Stokes: ORCID iD orcid.org/0000-0002-4204-0890

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Date deposited: 03 May 2019 16:30
Last modified: 20 Jul 2019 01:02

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