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Published online before print August 26, 2002, 10.1148/radiol.2251011008
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(Radiology 2002;225:289-294.)
© RSNA, 2002

Technical Developments

Comparison and Modification of Two Cerebral Protection Devices Used for Carotid Angioplasty: In Vitro Experiment1

Stefan Müller-Hülsbeck, MD, Jan Grimm, MD, Carsten Liess, MSc, PhD, Jürgen Hedderich, BS, Marcus Bergmeyer, MD and Martin Heller, MD

1 From the Departments of Radiology (S.M.H., J.G., M.B., M.H.), Medical Physics (C.L.), and Medical Statistics (J.H.), University Hospital, Arnold-Heller-Strasse 9, 24105 Kiel, Germany. Received June 6, 2001; revision requested July 23; final revision received March 11, 2002; accepted March 25. Address correspondence to S.M.H. (e-mail: muehue@rad.uni-kiel.de).

The effectiveness of two basic cerebral protection devices designed for carotid angioplasty with and without additional aspiration techniques was compared in an in vitro model. During carotid angioplasty, embolization was simulated by injecting polyvinyl alcohol particles of different sizes into the model system. None of the tested devices, all of which were positioned in the internal carotid artery, was able to completely prevent embolization. In the internal carotid artery, the rate of particle capture did not vary among protection devices. However, embolization into the external carotid artery was more frequent with use of the GuideWire, as compared with that with use of the Angioguard.

© RSNA, 2002

Index terms: Carotid arteries, stenosis or obstruction, 172.721, 904.721, 905.721 • Interventional procedures, complications • Interventional procedures, experimental studies, 172.1268, 904.1268, 905.1268




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