AJDRAJNR - American Journal of Neuroradiology

Publication Preview: Published April 16, 2008

American Journal of Neuroradiology 2008;29:1242.

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REVIEW ARTICLE

Coils in a Nutshell: A Review of Coil Physical Properties

J.B. White, C.G.M. Ken, H.J. Cloft and D.F. Kallmes

From the Departments of Neurological Surgery (J.B.W.) and Radiology (H.J.C., D.F.K.), Mayo Clinic, Rochester, Minn; and independent coil engineer (C.G.M.K.).

Please address correspondence to David F Kallmes, MD, Mayo Clinic, Department of Radiology, 200 First St SW, Rochester, MN 55905; e-mail: kallmes.david{at}mayo.edu

SUMMARY: Since its inception, endovascular coil technology has grown substantially as multiple manufacturers entered the market with an ever-increasing number of new products. Practitioners are now inundated with a choice of coils that vary on the basis of factors such as size, composition, stiffness, and detachment mechanism. The seasoned interventionalist had the benefit of evolving with this technology and, therefore, is likely to understand many of the practical nuances of coil development; for more junior practitioners, who did not experience the ongoing changes in technology, this review will provide a basic framework for the fundamentals of coil design.