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4D flat panel conebeam CTA reconstructions allow detailed analysis of the nidal angioarchitecture of AVMs. Further improvements in temporal resolution and automated reconstruction techniques are needed to use the method generally in clinical practice.
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A threshold transcranial Doppler mean flow-velocity value that would accurately diagnose ≥ 50% angiographic vasospasm remains elusive.
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Marginal sinus stenosis is a novel cause of venous pulsatile tinnitus, which can be easily detected on MR imaging. Marginal sinus stent placement is safe and efficient.