Diagnostic Value of 1.5T Superconducting Magnetic Resonance and 64-slice Spiral CT in Occult Fracture

LU Ran; FAN Qingbin

doi:10.14033/j.cnki.cfmr.2025.07.018

Abstract：Objective:To analyze the clinical value of 1.5T superconducting magnetic resonance(MRI)and 64-slice spiral CT in diagnosing patients with occult fractures.Method:A total of 86 patients with occult fracture admitted in Jingmen Hospital of Traditional Chinese Medicine from January 2019 to January 2024 were included in the study,all of whom were diagnosed with 1.5T superconducting magnetic resonance and 64-slice spiral CT.The results of surgery or arthroscopy were used as the standard to compare the diagnostic results of the two methods,the detection of occult fractures in different parts,the diagnostic efficiency and the detection of main imaging indicators.Result:There were 78 patients with occult fracture confirmed by surgery or arthroscopy,2 patients were misdiagnosed by 64-slice spiral CT and 8 were missed,1 patient was misdiagnosed by 1.5-T superconducting MRI and 2 were missed.Operative or arthroscopic examination revealed 48 cases of limb joint fractures,22 cases of rib fractures,and 8 cases of hip fractures.The detection rate of occult fractures in different parts of 1.5T superconducting MRI was higher than that of 64-row spiral CT,the differences were statistically significant(P<0.05).The diagnostic sensitivity and accuracy of 1.5T superconducting MRI were higher than those of 64-row spiral CT,and the differences were statistically significant(P<0.05).There was no significant difference in the specificity,positive predictive value and negative predictive value between the two methods(P>0.05).The detection rate of soft tissue injury,bone marrow edema and bone injury in 1.5T superconducting MRI was higher than that in 64-row spiral CT,and the difference was statistically significant(P<0.05).Conclusion:Both 1.5T superconducting MRI and 64-slice spiral CT have high clinical application value in the diagnosis of patients with occult fractures.MRI diagnosis has a higher detection rate for different sites of occult fractures and main imaging indicators,and has higher diagnostic efficiency,which can effectively improve the diagnostic accuracy.