TY - JOUR
T1 - OMERACT agreement and reliability study of ultrasonographic elementary lesions in osteoarthritis of the foot
AU - Zabotti, Alen
AU - Filippou, Georgios
AU - Canzoni, Marco
AU - Adinolfi, Antonella
AU - Picerno, Valentina
AU - Carrara, Greta
AU - Balint, Peter
AU - Bruyn, George
AU - D'Agostino, Maria Antonietta
AU - Damjanov, Nemanja
AU - Delle Sedie, Andrea
AU - Filippucci, Emilio
AU - Gonzalez Fernandez, Maria Luz
AU - Hammer, Hilde Berner
AU - Karim, Zunaid
AU - Mandl, Peter
AU - Moller, Ingrid
AU - Morales Lozano, Maria Rosario
AU - Naredo, Esperanza
AU - Porta, Francesco
AU - Sakellariou, Garifallia
AU - Terslev, Lene
AU - Scirè, Carlo Alberto
AU - Iagnocco, Annamaria
AU - OMERACT Ultrasound Task Force members
N1 - COPECARE
PY - 2019
Y1 - 2019
N2 - Objective: To evaluate the level of agreement on ultrasonographic (US) lesions among highly experienced sonographers as well as the intraobserver and interobserver reliability of inflammatory and structural US lesions in patients with osteoarthritis (OA) of the foot.Methods: After a systematic literature review, a Delphi survey was performed to test definitions of US lesions in OA of the foot, including inflammatory lesions (ie, synovial hypertrophy [SH], joint effusion [JE], power Doppler signal [PD]), and structural abnormalities (ie, cartilage damage [CD] and osteophytes). Subsequently, the reliability of US in assessing the aforementioned lesions was tested on static images as well as during a live exercise. Reliability was assessed by kappa analyses and prevalence-adjusted bias-adjusted kappa (PABAK) on a dichotomous and an ordinal scale.Results: Intraobserver and interobserver reliability for SH and JE evaluated by binary scoring was good for both components, while the intraobserver reliability for semiquantitative scoring of SH ranged from moderate in the web-based exercise (PABAK 0.49) to good (PABAK 0.8) in the live exercise. Reliability for CD and PD assessments were respectively good and excellent in all exercises (ranged from PABAK 0.61 to 0.79 for CD and 0.88 to 0.95 for PD). The interobserver reliability for the semiquantitative scoring of osteophytes was fair in the live exercise (PABAK 0.36) and moderate in the static exercise (PABAK 0.60).Conclusions: Consensual US definitions were found to be reliable for assessing inflammatory lesions in OA of the foot, while the use of US to assess structural damage requires further studies.
AB - Objective: To evaluate the level of agreement on ultrasonographic (US) lesions among highly experienced sonographers as well as the intraobserver and interobserver reliability of inflammatory and structural US lesions in patients with osteoarthritis (OA) of the foot.Methods: After a systematic literature review, a Delphi survey was performed to test definitions of US lesions in OA of the foot, including inflammatory lesions (ie, synovial hypertrophy [SH], joint effusion [JE], power Doppler signal [PD]), and structural abnormalities (ie, cartilage damage [CD] and osteophytes). Subsequently, the reliability of US in assessing the aforementioned lesions was tested on static images as well as during a live exercise. Reliability was assessed by kappa analyses and prevalence-adjusted bias-adjusted kappa (PABAK) on a dichotomous and an ordinal scale.Results: Intraobserver and interobserver reliability for SH and JE evaluated by binary scoring was good for both components, while the intraobserver reliability for semiquantitative scoring of SH ranged from moderate in the web-based exercise (PABAK 0.49) to good (PABAK 0.8) in the live exercise. Reliability for CD and PD assessments were respectively good and excellent in all exercises (ranged from PABAK 0.61 to 0.79 for CD and 0.88 to 0.95 for PD). The interobserver reliability for the semiquantitative scoring of osteophytes was fair in the live exercise (PABAK 0.36) and moderate in the static exercise (PABAK 0.60).Conclusions: Consensual US definitions were found to be reliable for assessing inflammatory lesions in OA of the foot, while the use of US to assess structural damage requires further studies.
U2 - 10.1136/rmdopen-2018-000795
DO - 10.1136/rmdopen-2018-000795
M3 - Journal article
C2 - 30997148
SN - 2056-5933
VL - 5
SP - e000795
JO - RMD Open
JF - RMD Open
IS - 1
ER -