American Journal of Neuroradiology, Vol 17, Issue 7 1333-1337, Copyright © 1996 by American Society of Neuroradiology
ARTICLES |
Intraaneurysmal flow: evaluation with Doppler guidewires
G Benndorf, E Wellnhofer, W Lanksch and R Felix
Department of Radiology, Virchow-Klinikum, Humboldt University, Berlin, Germany.
Flow dynamics in cerebral aneurysms were studied with the use of Doppler guidewires in two patients. In both cases it was possible to reach the aneurysmal sac and to assess intraaneurysmal flow. Torquability and flexibility of the new Doppler guidewires permitted continuous assessment of flow velocity and flow pattern at the dome as well as in the neck area. Flow velocities were higher at the neck than within the aneurysmal sac (88 cm/s > 28 cm/s). Because of the limited area of interrogation (sample volume, 5 mm) it was not possible to investigate the complete intraaneurysmal space.
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