MRA morphologic study of the vertebrobasilar artery system in patients with primary hemifacial spasm.
PURPOSE: This study assessed the efficacy of 3.0T magnetic resonance angiography (MRA) in individuals with primary hemifacial spasm (pHFS) by investigating the relationship between alterations in the morphology of the vertebrobasilar artery system and pHFS. METHODS: A comparison was made between pHFS patients and healthy co.....