目的 探讨三维电子计算机断层 扫描(CT)重建技术及磁共振成象(MRI)在 高能量致颈椎损伤诊治中作用分析，并评 估其诊断价值。方法 回顾性分析2009- 2013年我院骨伤科收治的20例经手术病理 证实的高能量致颈椎损伤患者的临床资 料，病例患者均行三维CT重建技术及MRI 影像学检查，分析病例患者两种影像学表 现并评估两者诊断价值。结果 20例病例 患者中共25个椎体爆裂骨折，并累及C7 15段椎节，C6 5段椎节及C5 3段椎节，C4 2段椎节，多发爆裂骨折3例，以累及C7、 C6椎节为主。20例病例患者中累及C7-C6 者有20例，占总数百分比为80.00%。病 例患者MRI信号表现为T1WI呈略低或等信 号，T2WI呈混杂高信号或高信号；MRI检 查显示脊髓损伤类型：爆裂型共4个椎 体，以椎体高度变扁，压缩高度＞1/2， 椎体横径增宽，前后径加大，信号不均匀 为主要表现；压缩型共14个椎体，以椎体 压缩变扁且呈锲型变为主要临床表现；单 纯型共7个椎体，以信号异常或椎体被轻 微压缩，压缩高度＜1/4，椎管无脱位为 主要征象。结论 三维CT重建技术及MRI在 高能量致颈椎损伤诊治中各有其优势，其 中MRI对高能量致颈椎损伤患者脊髓损伤 程度诊断价值较三维CT重建技术具有更显 著优势。

Objective To investigate the role of three-dimensional computed tomography (CT) reconstruction technique and magnetic resonance imaging (MRI) in the diagnosis and treatment of high energy induced cervical spine injury, and to evaluate its diagnostic value. Methods The clinical data of 20 cases with high energy induced cervical spine injury confirmed by operation and pathology who were treated in the department of orthopedics and traumatology in our hospital between 2009 and 2013 were analyzed retrospectively. Three dimensional CT reconstruction technique and MRI examination were performed in all patients. The findings of the two imaging methods were analyzed and the diagnostic value of the two was evaluated. Results There were 25 vertebral burst fractures in 20 patients, involving the C7 15 vertebral segment, C6 5 segment, C5 3 segment and C4 2 segment. There were multiple burst fractures in 3 cases, mainly involving the C7 and C6 segment. Among the 20 cases, there were 20 cases involving C7-C6, accounting for 80.00% of the total. MRI signal showed slightly lower or equal signal on T1WI, mixed high signal or high signal on T2WI. MRI examination showed that the types of spinal cord injury included bust type in 4 vertebral bodies. The main manifestations included the height of vertebral body becoming flat, compression height > 1/2, vertebral transverse diameter increasing, anteroposterior diameter increasing and inhomogeneous signal. A total of 14 vertebral bodies were compression type, with vertebral compression becoming flat and wedge in shape as the main clinical manifestations; A total of 7 vertebral bodies were simple type, with signal abnormalities or vertebral body slightly compressed, compressed height < 1/4, no dislocation of spinal canal as the main manifestations. Conclusion Three-dimensional CT reconstruction technique and MRI have their own advantages and disadvantage in the diagnosis and treatment of high energy induced cervical spine injury. The value of MRI in the diagnosis of high energy induced cervical spine injury is relatively higher than that of three-dimensional CT reconstruction technique.