目的评价外伤后肾侧支循环代偿肾皮质缘征的CT表现、发生时间及短期的变化，探索CT检查明确诊断的最佳时间。

Objective To evaluate the incidence and temporal development of the cortical rim sign in posttraumatic renal vascular compromise, and investigate the best time of CT examination.

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眼球破裂伤的常见部位是上方角膜缘（占45 % ） ，颞侧、鼻侧角膜缘和肌止点后巩膜（各占15 % ）。

The most common rupture location is superior limbus(45%), then temporary, nasal limbus and sclera posterior ocular muscle insertion 15%, respectively.

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