方法将慢性压迫性损伤（CCI）模型大鼠随机分为对照组和实验组。

Methods Chronic compress injury(CCI) model rats were randomly divided into experimental and control group.

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目的：建立与临床相近的颈脊髓慢性压迫动物实验模型，观察其MRI和病理改变。

Objective:To establish a kind of animal experimental model with typical clinical characteristics of cervical compressive myelopathy and study the changes of MRI and pathology.

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采用慢性泛影葡胺胶囊逐级压迫建立慢性脊髓压迫动物模型，造成家兔第2腰髓节段的慢性压迫。

The membranous sac filled with urografin was applied to produce an animal model of chronic spinal cord compression (L 2).

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