TY - JOUR
T1 - Reliability of the OMERACT Giant cell arteritis Ultrasonography Score (OGUS)
T2 - results of a patient-based exercise involving experts and non-experts in vascular ultrasonography
AU - Duftner, Christina
AU - Redlinger, Norbert
AU - Bruyn, George A
AU - Chadachan, Veerendra
AU - Chrysidis, Stavros
AU - Correyero, Maria
AU - D'Agostino, Maria Antonietta
AU - Dalsgaard Nielsen, Berit
AU - Dasgupta, Bhaskar
AU - De Miguel, Eugenio
AU - Diamantopoulos, Andreas P
AU - Fulvio, Giovanni
AU - Gkikopoulos, Nikitas
AU - Hartung, Wolfgang
AU - Hocevar, Alojzija
AU - Keen, Helen
AU - Kurteva, Vesselina
AU - Mandl, Peter
AU - Manger, Eva
AU - Mercatelli, Paolo
AU - Midtgard, Irina
AU - Monti, Sara
AU - Muller, Raili
AU - Mykkänen, Kati
AU - Pineda, Carlos
AU - Ponte, Cristina
AU - Reffat, Duriad
AU - Sarbu, Adela-Cristina
AU - Seitz, Luca
AU - Terslev, Lene
AU - Schmidt, Wolfgang
AU - Dejaco, Christian
N1 - © Author(s) (or their employer(s)) 2025. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.
PY - 2025/1/2
Y1 - 2025/1/2
N2 - OBJECTIVE: To test the reliability of the Outcome Measures in Rheumatology Giant cell arteritis (GCA) Ultrasonography Score (OGUS) and other composite scores in a patient-based exercise involving experts and non-experts in vascular ultrasonography.METHODS: Six GCA patients were scanned twice (two rounds separated ≥3 hours) by 12 experts and 12 non-experts. Non-experts received 90 min of theoretical and 240 min of practical training between rounds 1 and 2. Ultrasonography was conducted on temporal arteries (common superficial, frontal and parietal branches) and axillary arteries bilaterally to calculate the OGUS, the Southend score and the Halo count. Inter-reader and intra-reader reliability were assessed by intraclass correlation coefficient (ICC).RESULTS: Mean age of GCA patients was 78±5.1 years, 2 (33.3%) were women, and all were in clinical remission. Expert inter-reader ICC of the OGUS was 0.60 in both rounds, 0.40 in round 1 and 0.51 in round 2 for the Southend score and 0.45 and 0.52, respectively, for the Halo count. Median ICCs for intra-reader reliability were 0.86, 0.73 and 0.65 for the OGUS, Southend score and Halo count, respectively.For non-experts, inter-reader ICCs in round 1 were 0.20 for the OGUS, 0.20 for a normalised Southend score (=score divided by available segments) and 0.35 for a normalised Halo count. After training, inter-reader reliability ICCs improved to 0.52, 0.29 and 0.54, respectively.CONCLUSION: Inter-reader reliability was fair to moderate, and intra-reader reliability was good for OGUS, Southend score and Halo count among experts. Inter-reader reliability of non-experts in vascular ultrasonography improved after the training.
AB - OBJECTIVE: To test the reliability of the Outcome Measures in Rheumatology Giant cell arteritis (GCA) Ultrasonography Score (OGUS) and other composite scores in a patient-based exercise involving experts and non-experts in vascular ultrasonography.METHODS: Six GCA patients were scanned twice (two rounds separated ≥3 hours) by 12 experts and 12 non-experts. Non-experts received 90 min of theoretical and 240 min of practical training between rounds 1 and 2. Ultrasonography was conducted on temporal arteries (common superficial, frontal and parietal branches) and axillary arteries bilaterally to calculate the OGUS, the Southend score and the Halo count. Inter-reader and intra-reader reliability were assessed by intraclass correlation coefficient (ICC).RESULTS: Mean age of GCA patients was 78±5.1 years, 2 (33.3%) were women, and all were in clinical remission. Expert inter-reader ICC of the OGUS was 0.60 in both rounds, 0.40 in round 1 and 0.51 in round 2 for the Southend score and 0.45 and 0.52, respectively, for the Halo count. Median ICCs for intra-reader reliability were 0.86, 0.73 and 0.65 for the OGUS, Southend score and Halo count, respectively.For non-experts, inter-reader ICCs in round 1 were 0.20 for the OGUS, 0.20 for a normalised Southend score (=score divided by available segments) and 0.35 for a normalised Halo count. After training, inter-reader reliability ICCs improved to 0.52, 0.29 and 0.54, respectively.CONCLUSION: Inter-reader reliability was fair to moderate, and intra-reader reliability was good for OGUS, Southend score and Halo count among experts. Inter-reader reliability of non-experts in vascular ultrasonography improved after the training.
KW - Giant Cell Arteritis
KW - Ultrasonography
KW - Vasculitis
UR - https://www.scopus.com/pages/publications/85214590138
U2 - 10.1136/rmdopen-2024-004667
DO - 10.1136/rmdopen-2024-004667
M3 - Journal article
C2 - 39753294
SN - 2056-5933
VL - 11
JO - RMD Open
JF - RMD Open
IS - 1
M1 - e004667
ER -