Table 2: Comparative utility of X-ray, US, CT, and MRI in the diagnosis of gout.

X-rayUSCTMRI

Erosion++++++++
Effusion+++++++++
Synovial proliferation+++++++
Tophus+++++++++
Joint space narrowing+++++++++
Tendon pathology++++++++
Bone marrow edema++++
Tophus or synovial vascularity++++++