biostudies-literatureUnknown6(5)Ingwersen KG<h4>Aim</h4>To evaluate the inter-rater reliability of measuring structural changes in the tendon of patients, clinically diagnosed with supraspinatus tendinopathy (cases) and healthy participants (controls), on ultrasound (US) images captured by standardised procedures.<h4>Methods</h4>A total of 40 participants (24 patients) were included for assessing inter-rater reliability of measurements of fibrillar disruption, neovascularity, as well as the number and total length of calcifications and tendon thickness. Linear weighted κ, intraclass correlation (ICC), SEM, limits of agreement (LOA) and minimal detectable change (MDC) were used to evaluate reliability.<h4>Results</h4>'Moderate-almost perfect' κ was found for grading fibrillar disruption, neovascularity and number of calcifications (kBMJ opene011746https://www.ebi.ac.uk/biostudies/studies/S-EPMC4885468biostudies-literatureUltrasound assessment for grading structural tendon changes in supraspinatus tendinopathy: an inter-rater reliability study.PMC4885468Juul-Kristensen BVobbe JEshoej HLarsen CMHjarbaek JIngwersen KGfalseUltrasound assessment for grading structural tendon changes in supraspinatus tendinopathy: an inter-rater reliability study.<h4>Aim</h4>To evaluate the inter-rater reliability of measuring structural changes in the tendon of patients, clinically diagnosed with supraspinatus tendinopathy (cases) and healthy participants (controls), on ultrasound (US) images captured by standardised procedures.<h4>Methods</h4>A total of 40 participants (24 patients) were included for assessing inter-rater reliability of measurements of fibrillar disruption, neovascularity, as well as the number and total length of calcifications and tendon thickness. Linear weighted κ, intraclass correlation (ICC), SEM, limits of agreement (LOA) and minimal detectable change (MDC) were used to evaluate reliability.<h4>Results</h4>'Moderate-almost perfect' κ was found for grading fibrillar disruption, neovascularity and number of calcifications (k2016-01-01T00:00:00Z2016 May2026-06-14T08:48:05.778Z2026-06-14T03:17:17.234ZS-EPMC48854682722112810.1136/bmjopen-2016-011746