低碘组大鼠小脑矢状切面面积值均小于加碘组和对照组。
Comparing with that of control group, the area of medulla of iodine deficiency group is not decreased.
影像学检查：椎管矢状径增加，椎管横截面面积明显扩大，脊髓膨隆良好。
Radiologic Results:sagittal diameter of vertebral canal and trans. sec. area increased and spinal cord were well than preoperative status.
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