Table 2.

Average SUVs in individual and groups of joints, divided into joints visually negative and visually positive on PET.

JointAverage SUV for Joints Visually Negative on PETJoints Visually Negative on PET, nAverage SUV for Joints Visually Positive on PETJoints Visually Positive on PET, nP
Shoulders2.1 ± 0.9672.4 ± 0.330.67
Elbows1.1 ± 0.370NA0NA
Wrists0.8 ± 0.3441.0 ± 0.326< 0.01
MCP1 joints0.6 ± 0.2640.9 ± 0.26< 0.01
MCP2, 5 joints0.5 ± 0.22640.8 ± 0.216< 0.01
PIP joints0.4 ± 0.23090.7 ± 0.241< 0.01
Hips2.5 ± 0.870NA0NA
Knees1.1 ± 0.6661.4 ± 0.440.48
Ankles0.7 ± 0.3631.4 ± 0.37< 0.01
MTP1 joints0.6 ± 0.3521.1 ± 0.318< 0.01
MTP2, 5 joints0.6 ± 0.32301.0 ± 0.350< 0.01
  • Values are mean ± SD. MCP: metacarpophalangeal; MTP: metatarsophalangeal; NA: not applicable; PET: positron emission tomography; PIP: proximal interphalangeal; SUV: standardized uptake value.