Results 31 to 40 of about 194,572 (160)

El índice de pulsatilidad intracraneal elevado apoya el diagnóstico de parkinsonismo vascular frente a enfermedad de Parkinson idiopática

open access: yesNeurología, 2020
Resumen: Introducción: El diagnóstico de parkinsonismo vascular (PV) se realiza en función de una serie de criterios clínicos y hallazgos de neuroimagen compatibles. El aumento en el índice de pulsatilidad (IP) determinado por doppler transcraneal se ha
L.M. Caba   +5 more
doaj   +1 more source

Validez del Doppler transcraneal en el diagnóstico de muerte encefálica [PDF]

open access: yesRevista médica de Chile, 2010
Background: The clinical diagnosis of brain death is complex. Aim: To evaluate the diagnostic accuracy of transcranial Doppler (TCD) for brain death. Patients and Methods: Patients seen on the intensive care unit of a private hospital between January 2004 to December 2008, were included if they were in structural coma, had no craniectomy and had a ...
BRUNSER, ALEJANDRO   +7 more
openaire   +2 more sources

Dual Illumination Planar Doppler Velocimetry using a Single Camera [PDF]

open access: yes, 2003
A Planar Doppler Velocimetry (PDV) illumination system has been designed which is able to generate two beams, separated in frequency by about 600 MHz. This allows a common-path imaging head to be constructed, using a single imaging camera instead of ...
Nobes, David S.   +7 more
core   +1 more source

Multistatic human micro-Doppler classification of armed/unarmed personnel [PDF]

open access: yes, 2015
Classification of different human activities using multistatic micro-Doppler data and features is considered in this paper, focusing on the distinction between unarmed and potentially armed personnel.
Griffiths, Hugh   +8 more
core   +1 more source

Acousto-optic frequency switching for single-camera planar Doppler velocimetry [PDF]

open access: yes, 2001
A single-camera Planar Doppler velocimetry system has been demonstrated, in which illumination beams at two closely-spaced optical frequencies are derived from a single Argon-ion laser.
Nobes, David S.   +5 more
core   +1 more source

Syndrome of transient headache and neurological deficits with cerebrospinal fluid lymphocytosis (HaNDL) in a patient with confusional symptoms, diffuse EEG abnormalities, and bilateral vasospasm in transcranial Doppler ultrasound: A case report and literature review

open access: yesNeurología (English Edition), 2019
Introduction: HaNDL syndrome (transient headache and neurological deficits with cerebrospinal fluid lymphocytosis) is characterised by one or more episodes of headache and transient neurological deficits associated with cerebrospinal fluid lymphocytosis.
M. Hidalgo de la Cruz   +8 more
doaj   +1 more source

Investigation into the selection of viewing configurations for three-component planar Doppler velocimetry measurements. [PDF]

open access: yes, 2007
A method for the calculation of three orthogonal velocity components in planar Doppler velocimetry (PDV) using four or more measured velocity components (to the three typically used) is presented.
Nobes, David S.   +2 more
core   +5 more sources

Utilidad e indicaciones del Doppler transcraneal

open access: yesRevista Hospital Clínico Universidad de Chile, 1996
Resumen no ...
openaire   +1 more source

Single camera three component planar velocity measurements, using two frequency Planar Doppler Velocimetry (2v-PDV) (2005) [PDF]

open access: yes, 2005
The work presented here describes a method that allows three component velocity measurements to be made, quickly and non-intrusively, across a plane in a flow defined by a laser light sheet. The method, two frequency planar Doppler Velocimetry (2v-PDV)
Charrett, Thomas O. H.   +5 more
core   +1 more source

Perioperative ultrasound neuromonitoring: transcraneal Doppler and optic nerve.

open access: yesCirugia y cirujanos, 2020
Monitoring of the neurocritical in the perioperatory is in constant evolution. There are essentially two ultrasonographic application of neuromonitoring: the diameter of the sheath of the optic nerve and transcranial Doppler. Ultrasound-guided neuromonitoring can detect stenosis or occlusion of intracranial arteries, monitor the evolution of patients ...
Ángel A, Pérez-Calatayud   +5 more
openaire   +1 more source

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