Transcranial Doppler in cerebrovascular disease.
نویسندگان
چکیده
منابع مشابه
Transcranial Doppler in cerebrovascular disease.
Thomas JH: Incidence of recurrent stenosis after carotid endarter-ectomy determined by digital subtraction angiography. Digital transvenous angiography in follow-up examinations after carotid reconstruction. SUMMARY Doppler analysis of flow in intracranlal arteries is now possible using a 2 MHz probe allowing sufficient penetration of bone to obtain signals noninvasivety. Thirty-two normal subj...
متن کاملTranscranial Doppler in cerebrovascular disease.
Doppler analysis of flow in intracranial arteries is now possible using a 2 MHz probe allowing sufficient penetration of bone to obtain signals noninvasively. Thirty-two normal subjects, and 11 patients with cerebrovascular diseases including vasospasm following subarachnoid hemorrhage, middle cerebral artery stenosis, and extracranial internal carotid artery stenosis were studied by transcrani...
متن کاملCurrent Concepts of Cerebrovascular Disease Transcranial Doppler
Ultrasound examination of the extracranial carotid and vertebral arteries has been used for many years to diagnose and manage patients with cerebrovascular disease. However, evaluation of the intracranial circulation has until now required angiography. Extracranial ultrasound examinations utilize probe frequencies ranging from 3 to 10 MHz. These frequencies are unable to penetrate bone sufficie...
متن کاملDioxide in Various Types of Ischemic Cerebrovascular Disease: Evaluation by the Transcranial Doppler Method
Background and Purpose: The response of cerebral blood flow to changes in the arterial carbon dioxide partial pressure (i.e., carbon dioxide reactivity) has been evaluated as a parameter of cerebral perfusion reserve in patients with cerebrovascular disease. In this study, variations in this reactivity in various ischemic cerebrovascular diseases were evaluated by a newly established method, a ...
متن کاملEvaluation of cerebrovascular disease by combined extracranial and transcranial Doppler sonography. Experience in 1,039 patients.
Results from 1,039 combined cervical and transcranial Doppler examinations are reported. Satisfactory transcranial signals were not found in 2.7% of the cases. Compared with angiography, the accuracy of transcranial criteria in assessing collateral flow over the circle of Willis was 94 and 88% for anterior and posterior circulation, respectively. The method also appeared very promising for dete...
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ژورنال
عنوان ژورنال: Stroke
سال: 1987
ISSN: 0039-2499,1524-4628
DOI: 10.1161/01.str.18.4.814