| Evaluation of the characteristics of various types of coils for the embolization of intracranial aneurysms with an optical pressure sensor system. | |
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MedLine Citation:
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PMID: 20521144 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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INTRODUCTION: In coil embolization for an intracranial aneurysm, it is important to appropriately choose the coil most suitable for coping with various unforeseen situations. Additionally, because dense coil packing of the aneurysm sac is the most important factor to avoid a recurrence, properly selecting the coil is essential. In this article, the authors measured the coil insertion pressure of various types of coils with a newly developed sensor system, and coil characteristics were investigated. METHODS: The sensor consists of a hemostatic valve connected to the proximal end of a microcatheter. The sensor principle is based on an optical system. Using this, an experimental silicone aneurysm embolization was performed automatically at constant speed. The pattern of the insertion pressure and the maximum insertion pressure (MIP) were analyzed for the various types of coils. The sensor continuously monitored the mechanical force during the insertions. RESULTS: The sensor adequately recorded the coil insertion pressure during embolization in each coil. MIP was generally ranked in order of the coil type. The soft type coils required relatively less insertion pressure than standard/helical and 3D type. As for the patterns of coil insertion pressure, each coil presented a saw-like pressure pattern, though we observed some slight differences. 3D type coils showed peak pressure at the moment of "painting". Coil loop diameters barely affected MIP. However, as to the patterns of pressure, larger size coils more often presented the peak. CONCLUSIONS: Coil characteristics were well evaluated. The results obtained here reflected some actual clinical experience. Furthermore, collecting the in vivo study is mandatory, which may provide clinically useful data. |
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Authors:
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Noriaki Matsubara; Shigeru Miyachi; Yoshitaka Nagano; Tomotaka Ohshima; Osamu Hososhima; Takashi Izumi; Arihito Tsurumi; Toshihiko Wakabayashi; Akihito Sano; Hideo Fujimoto |
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Publication Detail:
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Type: Journal Article Date: 2010-06-03 |
Journal Detail:
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Title: Neuroradiology Volume: 53 ISSN: 1432-1920 ISO Abbreviation: Neuroradiology Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-02-22 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 1302751 Medline TA: Neuroradiology Country: Germany |
Other Details:
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Languages: eng Pagination: 169-75 Citation Subset: IM |
Affiliation:
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Department of Neurosurgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan, mnoriaki0817@yahoo.co.jp. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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