MRI在隐匿性肋骨骨折中的应用

The Application of MRI in Occult Rib Fractures

摘要: 目的：探讨MRI在隐匿性肋骨骨折诊断中的应用价值。方法：回顾性分析2022年1月至2024年12月期间因胸部外伤就诊且X线或CT检查阴性但临床高度怀疑肋骨骨折的50例患者的MRI影像资料。所有患者均接受MRI检查，记录骨折部位、数量及伴随软组织损伤情况。结果：MRI共检出隐匿性肋骨骨折62处，其中X线漏诊率为88.7% (55/62)，CT漏诊率为41.9% (26/62)。MRI对骨髓水肿的敏感性为100%，特异性为92.3%。此外，MRI还发现肋间肌损伤12例、胸膜损伤8例及肺挫伤5例。结论：MRI对隐匿性肋骨骨折的诊断具有高敏感性和特异性，尤其在X线或CT检查阴性时具有重要补充价值，同时可评估周围软组织损伤情况。

Abstract: Objective: To explore the application value of MRI in the diagnosis of occult rib fractures. Methods: The MRI image data of 50 patients who visited the doctor for chest trauma from January 2022 to December 2024 and had negative X-ray or CT test but were highly suspected of rib fractures in clinically. All patients underwent MRI to record the fracture site, number and accompanying soft tissue damage. Results: A total of 62 occult rib fractures were detected by MRI, of which the X-ray misdiagnosis rate was 88.7% (55/62) and the CT misdiagnosis rate was 41.9% (26/62). MRI was 100% sensitive to bone marrow edema and 92.3% specificity. In addition, MRI also found 12 cases of intercostal muscle injury, 8 cases of pleural injury and 5 cases of pulmonary contusion. Conclusion: MRI is highly sensitive and specific for the diagnosis of occult rib fractures, and is particularly valuable for supplementary value when X-ray or CT is negative, and can also evaluate the damage to the surrounding soft tissue.