title: [Endovascular Doppler sonography of intracranial blood vessels. Technical indications and potential applications].
abstract: Intravascular Doppler ultrasonography was initially performed with specially designed catheters and was used primarily for cardiological purposes. The recent introduction of a 0.018-in. flexible, steerable guide wire with an integrated 12-MHz piezoelectric transducer (FloWire) has made it possible to use this technique in neuroangiography. This system allows recording of Doppler spectra and determination of blood flow velocities in intracranial vessels after subselective introduction of a standard 3-F microcatheter. The measurement of blood flow velocity in an AVM feeding branch of a middle cerebral artery and the haemodynamic effects of the vasoconstrictive substance sumatriptan on the middle meningeal artery are used to illustrate potential applications of intravascular Doppler ultrasonography in neuroangiography.
authors.affiliation: Klinik für Radiologische Diagnostik und Neuroradiologie, Alfried Krupp Krankenhaus, Essen.
authors.forename: H
authors.initials: H
authors.lastname: Henkes
authors.forename: H C
authors.initials: HC
authors.lastname: Nahser
authors.forename: C
authors.initials: C
authors.lastname: Klötzsch
authors.forename: H C
authors.initials: HC
authors.lastname: Diener
authors.forename: D
authors.initials: D
authors.lastname: Kühne
mesh_terms: D000328:Adult; D001783:Blood Flow Velocity / Q000502:physiology; D006439:Hemodynamics / Q000502:physiology; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000000981:diagnostic imaging* / Q000503:physiopathology; D008297:Male; D008576:Meningeal Arteries / Q000000981:diagnostic imaging / Q000187:drug effects* / Q000502:physiology; D008875:Middle Aged; D018170:Sumatriptan / Q000494:pharmacology*; D014463:Ultrasonography
chemical_list: D018170:Sumatriptan
vernacular_title: Endovaskuläre Doppler-Sonographie intrakranieller Gefässe. Technischer Hinweis und mögliche Anwendungen.