Estimation for Early Diagnosis of Avascular Necrosis of Femoral Head

Objective: to discuss early diagnosis of avascular necrosis of femoral head.Methods:To estimate the diagnosis value of avascular necrosis of femoral head by comparing the X-ray、CT and ECT Films.Result:The diagnosis sensitivity of X-ray,CT、and ECT are respectively 18.8%,43.8% and 87.5%,the diagnosis accuracy of X-ray,CT and ECT are respectivly 45.8%,68.5% and 91.7%.Conclusion:ECT examination is a satisfactory diagnostic method for early avascular necrosis of femoral head.