Figure 3
Semiquantitative power-Doppler (PD) score for rabbit knees injected with monosodium urate (MSU), allopurinol and control groups. At days 1 and 3 an increase in PD signal intensity in the MSU crystal group was found when compared to the control group (**P <0.01 and *P <0.05, respectively). Additionally, a significant increase of PD signal was present when comparing the MSU to the allopurinol crystal groups (# P <0.05).