title: Control of swallowing by use of topical anesthesia during digital subtraction angiography.
abstract: Involuntary swallowing and other forms of patient motion are the greatest source of image degradation in digital subtraction angiograms of the extracranial carotid and vertebral arteries. If a patient gargles with a recommended dose of 2% viscous lidocaine, the urge and ability to swallow are reduced and image quality is improved.
mesh_terms: D000368:Aged; D002339:Carotid Arteries / Q000000981:diagnostic imaging*; D002340:Carotid Artery Diseases / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D003679:Deglutition / Q000187:drug effects*; D005260:Female; D006801:Humans; D008012:Lidocaine / Q000494:pharmacology*; D008297:Male; D008875:Middle Aged
chemical_list: D008012:Lidocaine