MRI of the ankle: comparison of 0.2-T and 1.0-T units

Purpose: Comparison of ankle joint injuries with different MR systems and a t different field strengths. Method:Ten patients with acute ankle injuries were examined using mid-field (1.0 T) and dedicated low-field (0.2 T) MR units. Findings of ligamentous injury, sinus tarsi involvement, bone injury, and tendon injury were correl ated. Results: There was no significant difference between mid- and low-field MR imaging for ligamentous injuries (chi(2)=0.0395),sinus tarsi changes bone i njuries (chi(2)=0.0507; critical value=5,991). Conclusion: This study showed good agreement in pathological findings in an kle injury on mid-field and low-field MR imaging.