Skip to main content

Advertisement

Table 2 Observer agreement for relative and absolute CEA-BML and STIR-BML measurements, and relative Nvoxel, irrespective of baseline/follow-up

From: Assessment of subchondral bone marrow lesions in knee osteoarthritis by MRI: a comparison of fluid sensitive and contrast enhanced sequences

Method Area Image sequence Observer agreement CEA-BML, STIR-BML and Nvoxel, relative CEA-BML, STIR-BML and Nvoxel, absolute
Biasa,% 95% CI Biasa, mm3/mm2b 95% CI
MS Femur T1 CE FS Inter-observer Intra-observer −0.86 −0.98 −2.68 −2.37 0.95 0.42 −79 −94 −281 −199 122 11
Tibia Inter-observer Intra-observer −0.67 −0.89 −4.2 −2.64 2.8 0.86 18 −58 −321 −147 358 31
Femur STIR Inter-observer Intra-observer −0.36 1.15 −1.45 −0.46 0.73 2.76 7 142 −129 −41 144 325
Tibia Inter-observer Intra-observer −0.26 1.18 −0.82 −0.06 1.35 2.41 −83 129 −209 6 44 251
CAS Femur T1 CE FS Inter-observer Intra-observer 0.23 −0.37 −1.22 −1.03 1.68 0.29 108 −71 −59 −185 276 43
Tibia Inter-observer Intra-observer 0.29 0.18 −1.57 −0.30 2.15 0.67 14 3 −94 −36 122 42
Femur STIR Inter-observer Intra-observer 0.01 −0.10 −0.41 −0.42 0.43 0.21 15 67 −60 13 89 121
Tibia Inter-observer Intra-observer −0.10 0.22 −0.70 −0.04 0.51 0.49 −74 61 −140 28 9 94
Dynamika Femur Tibia DCE-MRI Intra-observer Intra-observer −2.75 −2.5 −4.56 −5.37 −0.94 0.37 −27 −7 −50 −29 −5 15
  1. aBland-Altman analysis
  2. bCEA-BML and STIR-BML in mm3, Nvoxel in mm2