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(Stroke. 1999;30:1070-1075.)
© 1999 American Heart Association, Inc.

Original Contributions

Transcranial Color-Coded Duplex Sonography of Intracranial Veins and Sinuses in Adults

Reference Data From 130 Volunteers

Erwin Stolz, MD; Manfred Kaps, MD; Andreas Kern, MD; Sait Seymen Babacan, BS Wolfgang Dorndorf, MD

From the Departments of Neurology (E.S., B.S.S., W.D.) and Neuroradiology (A.K.), Justus-Liebeg-University, Giessen, and Medical University at Luebeck (M.K.), Germany.

Correspondence to Dr Erwin Stolz, Department of Neurology, Justus-Liebeg-University, Am Steg 14, D-35385 Giessen, Germany. E-mail erwin.stolz{at}neuro.med.uni-giessen.de

Background and Purpose—Transcranial color-coded duplex sonography (TCCS) of intracranial veins and sinuses in adults is a new, emerging application of ultrasonographic imaging. This study reports a standardized examination protocol for venous TCCS and provides reference data for clinical application.

Methods—In 130 healthy volunteers (mean age, 45.9±16.9 years; range, 14 to 77 years) the intracranial venous system was examined using frequency-based transtemporal TCCS. Identification rate, blood flow velocity , resistance index, and systolic/diastolic ratio were recorded for each examined venous vessel.

Results—Intracranial veins and sinuses show a low pulsatile forward flow with maximal systolic blood flow velocity up to 20 cm/s. Significant side differences of blood flow velocity in the paired venous structures could not be detected. Venous flow velocities decreased with age, whereas resistance indices and systolic/diastolic ratios increased. Women showed higher flow velocities than men. Mean identification rates for all age groups ranged from 70% to 90% for the deep middle cerebral vein, the basal cerebral vein, and the great cerebral vein of Galen. The straight sinus, the transverse sinus, and the rostral part of the superior sagittal sinus could be detected in 55% to 70% of cases. Detection rates were dependent on age and decreased as age increased.

Conclusions—Venous TCCS can reliably image a significant part of the cerebral venous system. This method can provide information on venous hemodynamics in normal subjects and pathological cases.

Key Words: ultrasonography, transcranial, color • ultrasonography • cerebral veins • cranial sinuses

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