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DOI:10.2214/AJR.04.1375
AJR 2006; 186:553-555
© American Roentgen Ray Society

Technical Innovation

Visualization and Quantification of Flow and Velocity Fields in Intracranial Arteriovenous Malformations Using Phase-Contrast MR Angiography

John W. Grinstead1,2, Shantanu Sinha1, Satoshi Tateshima3,4, Yih-Lin Nien1 and Fernando Vinuela1

1 Department of Radiological Sciences, University of California at Los Angeles, Ueberroth Bldg., Suite 3371, 10945 LeConte Ave., Los Angeles, CA 90095-7206.
2 Siemens Medical Solutions, Los Angeles, CA 90095.
3 Department of Neurosurgery, Atsugi City Hospital, Atsugi-shi, Kanagawa, Japan, 243-0004.
4 Department of System Design Engineering, Keio University School of Engineering, Kohoku-ku, Yohohama, Japan, 228-8522.

OBJECTIVE. The objective of this study was to describe postprocessing tools for MR phase-contrast flow quantification images and apply those tools to cerebral arteriovenous malformations (AVMs) to visualize blood flow dynamics noninvasively.

CONCLUSION. Inflow and outflow zones were clearly depicted at different regions in the AVM. The processed images showed flow patterns including vortical flow and variations in velocity over the cardiac cycle. Particle tracking gave an impression of the overall flow state and of the venous drainage system in particular.

Keywords: angiography • cine MRI • congenital malformations • hemodynamics • neuroimaging


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[Abstract] [Full Text] [PDF]


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