Application of magnetic resonance imaging in the diagnosis of avascular necrosis of femoral head

Objective To evaluate the diagnosis value of MRI i n avascular necrosis of femoral head(ANFH).Method 60 cases of avasc ular necrosis of femoral head were studied with MRI,compared the findings with c linical symptoms.Results MRI could specifically reflect the each stage imaging findings of avascular necrosis of femoral head.Double-line sign the characteristic expression of MRI in early avascular necrosis of femoral head.Conclusion MRI could exactly display early ANFH and reflect the exact range.It is very valuable in early treatment and prognosis.