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American Journal of Neuroradiology 27:1113-1118, May 2006
© 2006 American Society of Neuroradiology

Technical Note
INTERVENTIONAL

Hemodynamics in a Cerebral Artery before and after the Formation of an Aneurysm

A. Manthaa, C. Karmonikc, G. Benndorfb, C. Strotherc and R. Metcalfea

a Department of Mechanical Engineering, University of Houston, Houston, Tex
b Department of Radiology, Baylor College of Medicine, Houston, Tex
c Department of Radiology, The Methodist Hospital, Houston, Tex

Address correspondence to Prof. Ralph Metcalfe, Department of Mechanical Engineering, University of Houston, N207 Engineering Building 1, Houston, TX 77204-4006

SUMMARY: Using data obtained from 3D digital subtraction angiography acquisitions, computational fluid dynamics techniques were used first to assess hemodynamic factors in geometrically correct models of 3 paraclinoid aneurysms and then again for assessment after virtual removal of the aneurysms and reconstruction of the parent artery. Simulations revealed an area of relatively low and rotating wall shear stresses at the location at which each aneurysm had developed. This phenomenon, to our knowledge, has not been previously described.




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Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X