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. 2023 Aug;44(8):994–998. doi: 10.3174/ajnr.A7927

FIG 1.

FIG 1.

A right T12 CVF best visualized during resisted inspiration. Coronal MIP images from CTM performed in a patient with SIH are shown during maximum suspended inspiration (A), resisted inspiration (B), and the Valsalva maneuver (C). Although the CVF (arrow) is visible to varying degrees on all phases, visualization is best during resisted inspiration.