Search results for "Transcranial doppler sonography"

showing 3 items of 3 documents

Image guidance to improve reliability and data integrity of transcranial Doppler sonography.

2012

Abstract Background Principles and accuracy of image-guided transcranial Doppler (IG TCD) sonography have been published recently. However, it remains open whether combination of image guidance and TCD offers an additional clinical advantage. This study scores the accuracy of conventional TCD examinations and investigates the potential improvement of TCD data integrity and reliability regarding the additional use of IG. Methods Conventional TCD was performed by a group of experienced investigators, who were blinded to images of a navigation system tracking the Doppler probe, whereas an independent observer documented the TCD findings, acquired by the investigators, due to saving spatial dat…

Intracranial Arteriovenous MalformationsMalemedicine.medical_specialtyNeuronavigationUltrasonography Doppler TranscranialMagnetic resonance angiographyNeurosurgical Procedures03 medical and health sciencessymbols.namesake0302 clinical medicinePostoperative Complications030202 anesthesiologyImage Processing Computer-AssistedMedicineHumansVasospasm IntracranialThrombolytic TherapyImage guidanceAgedmedicine.diagnostic_testbusiness.industryData CollectionTranscranial doppler sonographyUltrasoundReproducibility of ResultsGeneral MedicineMiddle AgedSubarachnoid HemorrhageTranscranial DopplerCerebral Angiographycardiovascular systemsymbolsSurgeryFemaleNeurology (clinical)RadiologybusinessDoppler effect030217 neurology & neurosurgeryMagnetic Resonance AngiographyCerebral angiographyDilatation PathologicClinical neurology and neurosurgery
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Cerebral lateralisation during signed and spoken language production in children born deaf

2019

Highlights • Children born deaf show typical left-hemisphere dominance during language production. • No evidence of an association between left-lateralisation and language proficiency. • Exposure to auditory speech via a cochlear implant is not a prerequisite for left hemisphere language dominance.

Malelcsh:QP351-495Deafnessmusculoskeletal systemArticlelcsh:Neurophysiology and neuropsychologyotorhinolaryngologic diseasesCochlear implantsHumansfTCDFemaleSign languageChildDominance Cerebralhuman activitiesDeafChildrenLateralisationLanguageFunctional transcranial Doppler sonographyDevelopmental Cognitive Neuroscience
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Transcranial Doppler sonography in dementia of Alzheimer type.

1994

The intention of this study was to examine the relation of clinical variables and cognitive dysfunction to cerebrovascular blood flow in a sample of patients with Alzheimer''s disease without any sign or symptom of cardiovascular or cerebrovascular disease. The patients met DSM-III-R criteria for dementia of Alzheimer type. Blood flow velocities in the anterior, middle (MCA) and posterior cerebral arteries were recorded using transcranial Doppler sonography. Several psychometric tests including the Mini-Mental State Examination (MMSE) were performed. The patients’ age correlated significantly with the systolic flow velocity in the left MCA (r = –0.57) explaining 24% of the total variance; t…

Malemedicine.medical_specialtyUltrasonography Doppler TranscranialCognitive NeuroscienceDiseaseNeuropsychological TestsCentral nervous system diseaseDegenerative diseaseAlzheimer DiseaseInternal medicinemedicineHumansAgedAged 80 and overbusiness.industryTranscranial doppler sonographyCognitionBlood flowMiddle Agedmedicine.diseaseSurgeryPsychiatry and Mental healthCerebral blood flowCerebrovascular CirculationCardiologyFemaleGeriatrics and GerontologyAlzheimer's diseasebusinessDementia (Basel, Switzerland)
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