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目的探讨磁共振成像(MRI)在急性脊髓炎检查与诊断中的应用价值,为影像诊断提供更多的依据。方法对临床确诊的18例急性脊髓炎的临床资料和MRI进行回顾分析。结果 18例中脊髓肿胀增粗呈均匀一致性:9例均有脊髓增粗,但多数呈轻度肿胀,且均匀一致,外缘光滑,5例少数肿胀显著,但仍具有均匀一致特点;病变累及颈髓者5例,颈髓至上段胸髓者3例,中段胸髓者7例,胸下段脊髓受累3例;病变范围长达3个椎体者2例,4个椎体者3例,5个椎体者10例,6个椎体以上者3例;T1WI上呈略低信号7例,呈等信号11例;T2WI上均呈高或较高异常信号影;横轴位上T1WI上异常信号影位于脊髓中央部13例,脊髓中央部和周边部信号均增高5例;有7例在T2WI上高或较高信号的病变中可见小斑片状等信号影;7例行MRI对比增强检查,其中4例表现为中度强化,局限于脊髓前外侧,呈条状;另3例强化呈不规则斑片状,主要位于病灶周边部脊髓表面,无占位效应。结论 MRI能清晰显示病变及其病变程度和范围,对该病的诊断及鉴别诊断有很高的价值,是急性脊髓炎的影像首选理想影像检查和诊断技术。
Objective To explore the value of magnetic resonance imaging (MRI) in the diagnosis and diagnosis of acute myelitis and provide more basis for image diagnosis. Methods The clinical data and MRI of 18 cases of acute myelitis clinically diagnosed were retrospectively analyzed. Results In 18 cases, the swelling of the spinal cord was uniform. The spinal cord was thickened in 9 cases, but most of them were slightly swollen with a uniform margin. The outer margin was smooth and the swelling of 5 cases was significant, but the features were still uniform. 5 cases of cervical spinal cord involvement, 3 cases of cervical cord to upper thoracic cord, 7 cases of middle thoracic cord, 3 cases of lower thoracic spinal cord involvement, 2 lesions of 3 vertebrae, 3 vertebrae of 4 vertebrae , 5 vertebral body in 10 cases, 6 vertebral body in 3 cases; T1WI showed a slightly lower signal in 7 cases, showed equal signal in 11 cases; T2WI showed high or abnormal signal abnormalities; axial position on the T1WI On the central part of the spinal cord in 13 cases of abnormal signal, central and peripheral spinal cord signals were increased in 5 cases; 7 cases of high or high signals on T2WI lesions showed small patchy signal; 7 cases of MRI Contrast enhanced examination, of which 4 cases showed moderate enhancement, confined to the anterolateral spinal cord, strip; the other three cases showed irregular patchy enhancement, mainly located in the peripheral spinal cord lesions, no mass effect. Conclusion MRI can clearly show the extent and extent of the lesion and its lesion. It is of high value in the diagnosis and differential diagnosis of the disease and is the ideal imaging examination and diagnosis technique of choice for acute myelitis.