Application of CT and MRI in the Diagnosis of Early Avascular Necrosis of Femoral Head
Objective:To compare the diagnostic value of computed tomography(CT)and magnetic resonance imaging(MRI)in early avascular necrosis of the femoral head(ANFH).Methods:A total of 102 patients with suspected early stage ANFH admitted to Jinan Third People's Hospital from August 2021 to July 2024 were selected as the study objects,all of whom were examined by CT and MRI.With surgical results as the"gold standard",the detection of early ANFH by CT and MRI was observed.Meanwhile,the diagnostic efficacy of CT and MRI for early ANFH and the detection of positive signs were compared.Results:Among 102 patients suspected of early ANFH,80 were positive,22 were negative,77 were positive by CT and 79 were positive by MRI.The diagnostic sensitivity of 98.75%,specificity of 100.00%and accuracy of 99.02%of 102 patients with suspected early ANFH were higher than those of 88.75%,72.73%and 85.29%of CT,the differences were statistically significant(P<0.05).The detection rates of bone marrow edema,single cystic change,linear sign and linear trabecular structure blur in MRI were 86.27%,81.37%,85.29%and 90.20%,respectively,which were higher than 68.63%,67.65%,70.59%and 78.43%in CT,the differences were statistically significant(P<0.05).Conclusion:Compared with CT,MRI is more effective in the diagnosis of early ANFH,which can effectively identify positive signs and provide important reference for subsequent diagnosis and treatment.
Early avascular necrosis of femoral headElectronic computed tomographyMagnetic resonance imaging
万方数据
维普
