英语语法分析

AP dural sac diameter on axial and midsagittal images showed a similar tendency.

前后径在轴位和正中矢状位上呈现相似的变化趋势。

On midsagittal images, AP dural sac diameter and the upper-endplate angles of L1 and S1 were measured.

在正中矢状位图像上测量了L1和S1水平的硬脊膜囊的前后径和上终板角。