| Yasargil aneurysm clips: evaluation of interactions with a 1.5-T MR system. | |
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MedLine Citation:
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PMID: 9609877 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To evaluate the magnetic field interactions with Yasargil aneurysm clips exposed to a 1.5-T MR system. MATERIALS AND METHODS: Sixteen Yasargil aneurysm clips made with Phynox (10 clips returned to the manufacturer due to suspected magnetic field interactions and six clips obtained from the manufacturer in sterile packages) were tested for magnetic field interaction at 1.5 T by using techniques to assess magnetic field-induced translational (deflection angle test) and torque (changes in alignment or rotation) forces. RESULTS: None of the aneurysm clips demonstrated magnetic field interactions; that is, deflection angles were zero and there were no changes in alignment or evidence of rotational forces present. CONCLUSION: It is safe to perform MR procedures at 1.5 T or less in patients with Yasargil aneurysm clips made with nonferromagnetic material. |
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Authors:
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F G Shellock; E Kanal |
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Publication Detail:
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Type: In Vitro; Journal Article |
Journal Detail:
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Title: Radiology Volume: 207 ISSN: 0033-8419 ISO Abbreviation: Radiology Publication Date: 1998 Jun |
Date Detail:
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Created Date: 1998-06-18 Completed Date: 1998-06-18 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0401260 Medline TA: Radiology Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 587-91 Citation Subset: AIM; IM |
Affiliation:
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Department of Radiology, University of Southern California, School of Medicine, Los Angeles, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Alloys Artifacts Brain* Chromium Alloys* Cobalt Ferric Compounds / adverse effects Foreign Bodies / diagnosis* Humans Intracranial Aneurysm / diagnosis*, surgery Magnetic Resonance Angiography / contraindications, instrumentation*, methods Surgical Instruments* / adverse effects, statistics & numerical data |
| Chemical | |
Reg. No./Substance:
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0/Alloys; 0/Chromium Alloys; 0/Ferric Compounds; 0/phynox; 1317-54-0/ferrite; 7440-48-4/Cobalt |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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