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Proceedings Paper

Magnetically guided interventional medicine
Author(s): Bryan John Wellman; Matthew A. Howard III; Ralph G. Dacey; Michael Sean Grady; Rogers C. Ritter; George T. Gilles
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Paper Abstract

Endovascular techniques play a significant role in the management of cerebral AVMs. Currently, flow-guided microcatheters are used for the transfemoral embolization of intracranial AVMs. These catheters are carried by blood flow from their initial position in the neck into the intracranial circulation to the point of greatest flow, which is usually into the feeders of the AVM. Despite this state-of-the-art technology, a significant limitation includes difficulty reaching inaccessible branches secondary to suboptimal placement of the microcatheter. In this report we describe a new device concept to overcome the current limitations of low-guided transfemoral embolization of cerebral AVMs. It involves a magnetic surgery system (MSS) that magnetically manipulates the tip of the microcatheter. The feasibility of this concept was successfully tested using multiple transparent glass intracranial vascular models of the anterior cerebral circulation.

Paper Details

Date Published: 5 June 1998
PDF: 11 pages
Proc. SPIE 3262, Surgical-Assist Systems, (5 June 1998); doi: 10.1117/12.309460
Show Author Affiliations
Bryan John Wellman, Univ. of Iowa Hospitals and Clinics (United States)
Matthew A. Howard III, Univ. of Iowa Hospitals and Clinics (United States)
Ralph G. Dacey, Washington Univ. School of Medicine (United States)
Michael Sean Grady, Univ. of Pennsylvanis Medical Ctr. (United States)
Rogers C. Ritter, Univ. of Virginia (United States)
George T. Gilles, Univ. of Virginia (United States)


Published in SPIE Proceedings Vol. 3262:
Surgical-Assist Systems
Roger Von Hanwehr M.D.; Marilyn Sue Bogner; Steven T. Charles M.D.; Abraham Katzir; Marilyn Sue Bogner; Steven T. Charles M.D.; James A. Harrington; Warren S. Grundfest M.D.; Louis S. Lome; Warren S. Grundfest M.D.; James A. Harrington; Abraham Katzir; Louis S. Lome; Michael W. Vannier M.D.; Roger Von Hanwehr M.D., Editor(s)

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