Ultrasonography Doppler Transcranial
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Evaluation of cerebral hemodynamics by transcranial Doppler ultrasonography and its correlation with intracranial pressure in an animal model of intracranial hypertension
RESUMO Antecedentes: O Doppler transcraniano (DTC) é uma técnica não invasiva para a avaliação da hemodinâmica cerebral, porém existem controvérsias na literatura sobre sua aplicabilidade preditiva em situações de elevada pressão intracraniana (PIC). Objetivo: Investigar o fluxo sanguíneo cerebral pelo DTC e correlacioná-lo com as variaçõe
Arquivos de Neuro-Psiquiatria. Publicado em: 2022
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2. Autorregulação encefálica durante manobra de preensão manual avaliada pela técnica de autorregressão de médias móveis através do Doppler transcraniano / Cerebral hemodynamic changes assessed by transcranial Doppler ultrasonography during handgrip maneuver
We investigated the effect of handgrip (HG) maneuver on time-varying estimates of dynamic cerebral autoregulation (CA), using the autoregressive moving average (ARMA) technique. Twelve healthy subjects were recruited to perform HG maneuver during 3 minutes with 30% of maximum contraction force. Cerebral blood flow velocity, end-tidal CO2 pressure (PETCO2), a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/08/2012
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3. Abnormal transcranial Döppler ultrasonography in children with sickle cell disease
BACKGROUND: Stroke is a potentially fatal complication of sickle cell disease in children between 2-16 years and transcranial Döppler has been recommended as a screening method in these cases. OBJECTIVE: The main goal of this study was to correlate transcranial Döppler results to complications related to stroke in sickle cell disease and baseline character
Rev. Bras. Hematol. Hemoter.. Publicado em: 2012
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4. Analise retrospectiva da aplicação do doppler transcraniano no diagnostico de morte encefalica em potenciais doadores de orgãos / Retrospective analysis of transcranial doppler examination for brain death confirmation in potential organ donors
Justificativa e Objetivo. No Brasil, o diagnóstico clínico de morte encefálica (ME) requer pelo menos um exame subsidiário para sua confirmação, e o Doppler transcraniano (DTC) tem sido aceito para documentar a parada circulatória cerebral (PCC). Assim, o principal objetivo do presente estudo é relatar nossa experiência com o uso do DTC na confirma�
Publicado em: 2008
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5. Role of transcranial Doppler ultrasonography in stroke
Transcranial Doppler sonongraphy 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‐occ
BMJ Group.
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6. Transcranial Doppler ultrasonography in the detection of venous to arterial shunting in acute stroke and transient ischaemic attacks.
OBJECTIVES: To prospectively evaluate the prevalence of venous to arterial shunting in patients with acute stroke and transient ischaemic attacks (TIAs) using transcranial Doppler ultrasonography (TCD) with saline contrast. METHODS: A consecutive series of patients with stroke or TIA underwent contrast TCD. Patients were subsequently divided into groups acco
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7. Intracranial blood flow velocity after head injury: relationship to severity of injury, time, neurological status and outcome.
Middle cerebral artery (MCA) blood flow velocity was measured daily by transcranial Doppler ultrasonography in 121 patients with severe (50), moderate (16) and minor (55) head injury during their hospital stay, and the results compared with findings in control subjects. Admission MCA velocity was significantly lower after severe 35.8 (31.9-39.7) cm/s, mean (
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8. Microembolic Signals in Patients Undergoing Coronary Artery Bypass Grafting: Effect of Aortic Atherosclerosis
The aim of this prospective study was to determine whether aortic atherosclerotic plaques are associated with increased frequency of microembolic signals and stroke in patients who undergo coronary artery bypass grafting. A total of 69 such patients were monitored by transcranial Doppler ultrasonography for 30 minutes before and after surgery. To our knowled