Abdulrahman M Alfuraih1, Philip O'Connor2, Ai Lyn Tan3, Elizabeth Hensor4, Paul Emery5, Richard J Wakefield6. 1. -Radiology and Medical Imaging Department, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Kharj, Saudi Arabia. -Leeds Institute of Rheumatic and Musculoskeletal Medicine, Chapel Allerton Hospital, University of Leeds, United Kingdom. -NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom.. mt14ama@leeds.ac.uk. 2. -NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom.. philip.oconnor@nhs.net. 3. -Leeds Institute of Rheumatic and Musculoskeletal Medicine, Chapel Allerton Hospital, University of Leeds, United Kingdom. -NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom.. A.L.Tan@leeds.ac.uk. 4. -Leeds Institute of Rheumatic and Musculoskeletal Medicine, Chapel Allerton Hospital, University of Leeds, United Kingdom. -NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom.. E.M.A.Hensor@leeds.ac.uk. 5. -Leeds Institute of Rheumatic and Musculoskeletal Medicine, Chapel Allerton Hospital, University of Leeds, United Kingdom. -NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom.. P.Emery@leeds.ac.uk. 6. -Leeds Institute of Rheumatic and Musculoskeletal Medicine, Chapel Allerton Hospital, University of Leeds, United Kingdom. -NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom.. R.J.Wakefield@leeds.ac.uk.
Abstract
AIMS: The reliability and agreement between shear wave elastography (SWE) systems using different acquisition methods in muscles is not yet established. The objectives were to determine the reliability of a new SWE system on normal resting muscles using different acquisition methods and to compare its performance to an established state-of-the-art system. MATERIALS AND METHODS: Small, medium and large ROI sizes in addition to longitudinal, oblique and transverse orientations over five different locations within the rectus femoris muscle were tested using the new system. Results were compared to the established system to test for inter-system reproducibility. RESULTS: Lowest within-subject coefficient of variance (4.3%) andshear wave velocity (1.83 m/s) were associated with the medium ROI and longitudinal orientation from the lateral location. This combination resulted in a strong internal agreement of intra-class correlation of 0.76 (0.57-0.89) for the new system and an almost perfect agreement of 0.92 (0.82-0.97) for the established. Inter-system reproducibility for the best combination was 0.71 (0.48-1) with a mean velocity difference ±95% limits of agreement of 0.07±0.49 m/s. CONCLUSIONS: Altering SWE acquisition methods can produce variable results. The new system produced reliable results that are comparable with but not as reliable as the established.
AIMS: The reliability and agreement between shear wave elastography (SWE) systems using different acquisition methods in muscles is not yet established. The objectives were to determine the reliability of a new SWE system on normal resting muscles using different acquisition methods and to compare its performance to an established state-of-the-art system. MATERIALS AND METHODS: Small, medium and large ROI sizes in addition to longitudinal, oblique and transverse orientations over five different locations within the rectus femoris muscle were tested using the new system. Results were compared to the established system to test for inter-system reproducibility. RESULTS: Lowest within-subject coefficient of variance (4.3%) andshear wave velocity (1.83 m/s) were associated with the medium ROI and longitudinal orientation from the lateral location. This combination resulted in a strong internal agreement of intra-class correlation of 0.76 (0.57-0.89) for the new system and an almost perfect agreement of 0.92 (0.82-0.97) for the established. Inter-system reproducibility for the best combination was 0.71 (0.48-1) with a mean velocity difference ±95% limits of agreement of 0.07±0.49 m/s. CONCLUSIONS: Altering SWE acquisition methods can produce variable results. The new system produced reliable results that are comparable with but not as reliable as the established.
Authors: Kevin J Cipriano; Jordan Wickstrom; Michael Glicksman; Lauren Hirth; Michael Farrell; Alicia A Livinski; Sogol Attaripour Esfahani; Robert J Maldonado; Jared Astrow; William A Berrigan; Antonia M H Piergies; Lisa D Hobson-Webb; Katharine E Alter Journal: Clin Neurophysiol Date: 2022-04-30 Impact factor: 4.861
Authors: Abdulrahman M Alfuraih; Ai Lyn Tan; Philip O'Connor; Paul Emery; Richard J Wakefield Journal: Aging Clin Exp Res Date: 2019-02-14 Impact factor: 3.636
Authors: Jonathan Nicholls; Abdulrahman M Alfuraih; Elizabeth M A Hensor; Philip Robinson Journal: Skeletal Radiol Date: 2019-12-12 Impact factor: 2.199