Neuroradiology

, Volume 46, Issue 7, pp 565–570

How does the blood leave the brain? A systematic ultrasound analysis of cerebral venous drainage patterns

  • Florian Doepp
  • Stephan J. Schreiber
  • Thomas von Münster
  • Jörg Rademacher
  • Randolf Klingebiel
  • José M. Valdueza
Diagnostic Neuroradiology

Abstract

The internal jugular veins are considered to be the main pathways of cerebral blood drainage. However, angiographic and anatomical studies show a wide anatomical variability and varying degrees of jugular and non-jugular venous drainage. The study systematically analyses the types and prevalence of human cerebral venous outflow patterns by ultrasound and MRI. Fifty healthy volunteers (21 females; 29 males; mean age 27±7 years) were studied by color-coded duplex sonography. Venous blood volume flow was measured in both internal jugular and vertebral veins in the supine position. Furthermore, the global arterial cerebral blood volume flow was calculated as the sum of volume flows in both internal carotid and vertebral arteries. Three types of venous drainage patterns were defined: a total jugular volume flow of more than 2/3 (type 1), between 1/3 and 2/3 (type 2) and less than 1/3 (type 3) of the global arterial blood flow. 2D TOF MR-venography was performed exemplarily in one subject with type-1 and in two subjects with type-3 drainage. Type-1 drainage was present in 36 subjects (72%), type 2 in 11 subjects (22%) and type 3 in 3 subjects (6%). In the majority of subjects in our study population, the internal jugular veins were indeed the main drainage vessels in the supine body position. However, a predominantly non-jugular drainage pattern was found in approximately 6% of subjects.

Keywords

Cerebral venous drainage Color-coded duplex sonography Extrajugular venous system 

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Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • Florian Doepp
    • 1
  • Stephan J. Schreiber
    • 1
  • Thomas von Münster
    • 1
  • Jörg Rademacher
    • 1
  • Randolf Klingebiel
    • 2
  • José M. Valdueza
    • 1
  1. 1.Department of NeurologyUniversity Hospital CharitéBerlinGermany
  2. 2.Department of NeuroradiologyUniversity Hospital CharitéBerlinGermany

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