title: Role of transcranial Doppler ultrasonography in stroke.
abstract: Transcranial Doppler sonography is a non-invasive, non-ionising, inexpensive, portable and safe technique that uses a pulsed Doppler transducer for assessment of intracerebral blood flow. This article deals with the principles and technique of transcranial Doppler sonography. It gives a brief overview of its use in evaluation of intracranial steno-occlusive disease, subarachnoid haemorrhage, and extracranial diseases (including carotid artery disease and subclavian steal syndrome). The role of transcranial Doppler in detection of microembolic signals and evaluation of right to left shunts is also dealt with. Finally, its use in acute stroke is briefly outlined.
authors.affiliation: The Ayr Hospital, Dalmellington Road, Ayr, Ayrshire, KA6 6DX, UK.
authors.forename: Sanjukta
authors.initials: S
authors.lastname: Sarkar
authors.forename: Sujoy
authors.initials: S
authors.lastname: Ghosh
authors.forename: Sandip Kumar
authors.initials: SK
authors.lastname: Ghosh
authors.forename: Andrew
authors.initials: A
authors.lastname: Collier
mesh_terms: D000208:Acute Disease; D002545:Brain Ischemia / Q000000981:diagnostic imaging; D002539:Cerebral Arterial Diseases / Q000000981:diagnostic imaging; D006801:Humans; D020521:Stroke / Q000000981:diagnostic imaging*; D017585:Ultrasonography, Doppler, Transcranial / Q000379:methods*