Depending on the postures, the mean dural sac cross - sectional area and AP dural sac diameter changed.

硬脊膜囊的平均横截面积和前后径随体位的不同而发生变化.

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Key words: lumbar spinal morphology, spinal stenosis, positional MRI, axial load, dural sac cross - sectional area.

要害词: 腰椎形态学, 椎管狭窄, 体位MRI, 轴向负荷, 硬脊膜囊横断面积.

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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.

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