Table 7 US versus MRI in JIA
   US |    MRI |
|---|---|
Early diagnosis | Early diagnosis |
Soft tissues | Soft tissues |
Hyperemia/Doppler | Hyperemia/contrast enhancement |
Available at point of care | Poor availability |
Non-invasive | IV contrast |
Sedation/general anesthesia in young children | |
Quick | Time consuming |
Focal imaging | Overview |
Bone surface only | Bone, bone marrow edema |
Machine and operator dependent | Machine and operator dependent |
Limited normative data | Limited normative data |
Not validated | Not validated |