CSF-flow prior and after spinal tap test in patients with idiopathic normal pressure hydrocephalus-an exploratory study using real-time phase-contrast MRI.

Notably, although these changes did not reach statistical significance, a trend toward increased CSF-flow was observed in the intracranial regions (aqueduct, third and fourth ventricles) following STT, while the extracranial regions (C2 and C4 levels) appeared to show slight decreases in mean flow volume.

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