spinal foramen

The morphology and position were investigated on 348 intervertebral foramen and root of spinal nerves from the second cervical vertebra to the first thoracic vertebra of 30 adult cadavers. Its diame-ters were measured.

对30例成年男性颈椎颈2到胸1间的348个椎间孔和相应神经根形态位置进行了观察，对其径线进行了测量。

In cases with larger extradural arachnoid cyst, symmetrical widening of the spinal canal and intervertebral foramen was demonstrated on plain radiograph, CT and MRI.

较大的硬脊膜外蛛网膜囊肿X线平片、CT及MRI均显示椎管及椎间孔呈对称性扩大。

Although the spinal foramen magnum anteriorposterior diameter was smaller but not statistically different from the control.

枕大孔水平脊髓前后径及斜径角较正常对照组为小，但枕大孔前后径无明显差别。

Results: 1.The segmental artery sent off a spinal branch which transversed the intervertebral foramen and divided into anterior and posterior radiculomedullary arteries.

结果：①节段动脉在肋横突关节内侧椎间孔部发出根髓动脉。

Results ① In the middle of the spinal nerve groove, cervical foramen has the least effect on the seventh spinal nerve anterior branch.

结果①在脊神经沟中部，第七脊神经前支最不易受横突孔影响。

Spinal canal stenosis and neural foramen stenosis were found in 59.1% and 16.2%, respectively.

椎管和神经孔狭窄率分别为59.1%、16.2%。

Conclusion: CT is a valuable modality in examining cervical injury and, also, an effective imaging method in demonstrating of spinal or neural foramen stenosis, burst of transverse process foramen, hemorrhage, and the injury of transverse ligament of atlas.

结论：CT是颈椎损伤的重要检查手段，是诊断椎管和神经孔狭窄，横突孔破裂、出血，环椎横韧带损伤的有效方法。