Radiology Research and Practice / 2011 / Article / Fig 4

Review Article

Myelography in the Age of MRI: Why We Do It, and How We Do It

Figure 4

Diagnostic value of additional upright/functional views. (a) Extension (left) shows marked narrowing of the sagittal dural sac diameter directly above the stabilization. The finding in flexed position (right) is normal. This information cannot be obtained in the prone position alone. (b) Oblique views, top: prone position, bottom: patient standing upright. Shortening of the left L4 root and compression of the left L5 origin are only visible in the upright position.
329017.fig.004a
(a)
329017.fig.004b
(b)

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