Transcranial Doppler sonography. Part 1. Principles, technique, and normal appearances.

Lupetin, Anthony R.; Davis, D A; Beckman, Irwin; Dash, Nilima

doi:10.1148/radiographics.15.1.7899596

Cited by 64 publications

(50 citation statements)

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“…All statistical analyses were performed using SPSS version 10.0 (SPSS Inc., Chicago, IL, USA). painless method that enables the accurate assessment of intracranial arteries, adding physiologic information to the anatomic images (Lupetin et al 1995a;Sharma et al 2007). With this technique, it is possible to evaluate the fl ow characteristics of intracranial arteries, to detect embolus, vasospasm or vasomotor autoreactivity (White and Venkatesh 2006).…”

Section: Discussionmentioning

confidence: 99%

Normal Blood Flow Velocities of Basal Cerebral Arteries Decrease with Advancing Age: A Transcranial Doppler Sonography Study

Demirkaya

Uluç

Bek

et al. 2008

Tohoku J. Exp. Med.

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Transcranial Doppler sonography (TCD) is a non-invasive diagnostic tool enabling evaluation of blood fl ow characteristics of basal intracerebral vessels via thin calvarian regions. Several factors may affect the normal values of cerebral hemodynamic parameters, and standard reference values for each laboratory are needed for precise interpretation of the results. The aims of this study were to determine normal values of fl ow velocities of basal cerebral arteries of our TCD laboratory, and to study the infl uence of age and gender on normal values. We studied 63 healthy volunteers (30 male and 33 females; age range, 5 -69 years old) with TCD with a 2-MHz transcranial probe. The subjects were divided into 7 age groups: 5-10 years, 11-20 years, 21-30 years, 31-40 years, 41-50 years, 51-60 years and > 60 years. Mean velocity (V mean), peak systolic velocity (PSV), and end-diastolic velocities (EDV) were determined in middle, anterior and posterior cerebral arteries. No signifi cant gender difference was found. However, there was a decrease in blood fl ow velocities in all vessels with advancing age, which was signifi cant when subjects older than 40 years and 40 years old were compared. V mean, PSV and EDV values were highest in the age group of 5 -10 years old and lowest in volunteers older than the age of 60 ( p < 0.05). As a conclusion, fl ow velocities in basal cerebral arteries range widely and are signifi cantly age-related. Age matching of TCD data is a requirement for clinically relevant conclusions.transcranial Doppler sonography; basal; cerebral arteries; normal values; healthy subjects. Tohoku

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Section: Discussionmentioning

confidence: 99%

Normal Blood Flow Velocities of Basal Cerebral Arteries Decrease with Advancing Age: A Transcranial Doppler Sonography Study

Demirkaya

Uluç

Bek

et al. 2008

Tohoku J. Exp. Med.

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“…Before insertion of the transducer, only spray lidocaine was used for anesthesia of oropharynx. Transcranial Doppler was performed with a Pionner-Nicolet equipment model 530 and the examination was conducted according to the standard technique 9 by the patients were excluded due to incomplete evaluation. Eighty-eight cases were considered cryptogenic (52%).…”

Section: Methodsmentioning

confidence: 99%

Forame oval patente e acidente vascular cerebral isquêmico em jovens: associação causal ou estatística?

Negrão

Brandi

Nunes³

et al. 2007

Arq. Bras. Cardiol.

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“…23 The mean flow velocity at the basilar artery was approximately 0.3 m/s in all 9 models, which is within physiologic levels. 24 Zero pressure was imposed at the outlets. The width of the time-step for calculation was set at 0.005 seconds.…”

Section: Cfd Simulationsmentioning

confidence: 99%

Hemodynamics of 8 Different Configurations of Stenting for Bifurcation Aneurysms

Kono

Terada

2013

AJNR Am J Neuroradiol

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Transcranial Doppler sonography. Part 1. Principles, technique, and normal appearances.

Cited by 64 publications

References 0 publications

Normal Blood Flow Velocities of Basal Cerebral Arteries Decrease with Advancing Age: A Transcranial Doppler Sonography Study

Normal Blood Flow Velocities of Basal Cerebral Arteries Decrease with Advancing Age: A Transcranial Doppler Sonography Study

Forame oval patente e acidente vascular cerebral isquêmico em jovens: associação causal ou estatística?

Hemodynamics of 8 Different Configurations of Stenting for Bifurcation Aneurysms

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