Key result
Pulsed color Doppler ultrasonography in normal adults showed the anterior circulation carries 82% of the brain's blood supply, demonstrating precise concordance with theoretical expectations.
Why the study?
What are the relative flow contributions of the anterior and posterior cerebral circulation in normal adults as measured by pulsed color Doppler ultrasonography?
Population
21 normal adults
Comparison
Pulsed color Doppler ultrasonography to measure… vs Theoretically expected anterior and posterior…
Design
Cross-sectional
Authors
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Supports Doppler validation of cerebral flow theory in normals; leaves open extension to cerebrovascular disease.
Observational (n=21)
What are the relative flow contributions of the anterior and posterior cerebral circulation in normal adults as measured by pulsed color Doppler ultrasonography?
In vivo ultrasound measurements of cerebral blood flow distribution precisely match theoretical Hagen-Poiseuille expectations, supporting traditional macroscopic blood flow concepts.
Boyajian et al. (1995) conducted an observational in Healthy (normal adults) (n=21). Pulsed color Doppler ultrasonography was evaluated on Relative flow contributions of the anterior and posterior cerebral circulation. Pulsed color Doppler ultrasonography in normal adults showed the anterior circulation carries 82% of the brain's blood supply, demonstrating precise concordance with theoretical expectations.
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