title: Transcranial Doppler: technique and application to headache.
abstract: This article reviews the technique and physics relevant to a functional understanding of transcranial doppler. The frequently contradictory findings in migraine are reviewed. Several studies suggest increased flow velocities are common in the interictal period. There are disparate findings between studies of the ictal period. In cluster headache, there appear to be more easily reproduced changes between and during cluster attacks.
authors.affiliation: Department of Neurology, Germantown Hospital and Medical Center, Philadelphia, Pennsylvania.
authors.forename: W B
authors.initials: WB
authors.lastname: Young
authors.forename: S D
authors.initials: SD
authors.lastname: Silberstein
mesh_terms: D002560:Cerebrovascular Circulation / Q000502:physiology; D002561:Cerebrovascular Disorders / Q000000981:diagnostic imaging; D004453:Echoencephalography / Q000379:methods*; D006261:Headache / Q000000981:diagnostic imaging* / Q000503:physiopathology; D006801:Humans