New ways of performing in vivo flow velocity measurements in the basilar artery

The basilar artery is the only large artery in which two flows merge, and this is reflected in the flow downstream. We report quantitative flow-velocity measurements with a phase-based MR technique, i.e. the Fourier velocity encoding method, in the basilar artery of a volunteer. To our knowledge, th...

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Bibliographic Details
Published inNeuroradiology Vol. 38; no. 1; p. 1
Main Authors Ravensbergen, J, Tarnawski, M, Vriens, E M, Hillen, B, Caro, C G, Van Huffelen, A C
Format Journal Article
LanguageEnglish
Published Germany 01.01.1996
Subjects
Adult
Basilar Artery - physiology
Blood Flow Velocity - physiology
Brain - blood supply
Female
Fourier Analysis
Humans
Image Processing, Computer-Assisted
Magnetic Resonance Angiography
Pulsatile Flow - physiology
Reference Values
Software
Ultrasonography, Doppler, Transcranial
Vascular Resistance - physiology
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Summary:The basilar artery is the only large artery in which two flows merge, and this is reflected in the flow downstream. We report quantitative flow-velocity measurements with a phase-based MR technique, i.e. the Fourier velocity encoding method, in the basilar artery of a volunteer. To our knowledge, this has not previously been performed successfully. A comparison is made with the results of flow velocity measurements in the basilar artery with transcranial Doppler ultrasonography; the techniques agreed very well. Although Doppler ultrasonography is still most widely used, no information on the flow rate and the flow velocity distribution in the basilar artery can be provided. MR flow measurement techniques appear promising when detailed information on the flow velocity distribution and flow rate is needed.
ISSN:0028-3940
DOI:10.1007/BF00593204