| MRI-guided vascular access with an active visualization needle. | |
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MedLine Citation:
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PMID: 22006552 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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PURPOSE: To develop an approach to vascular access under magnetic resonance imaging (MRI), as a component of comprehensive MRI-guided cardiovascular catheterization and intervention. MATERIALS AND METHODS: We attempted jugular vein access in healthy pigs as a model of "difficult" vascular access. Procedures were performed under real-time MRI guidance using reduced field of view imaging. We developed an "active" MRI antenna-needle having an open-lumen, distinct tip appearance and indicators of depth and trajectory in order to enhance MRI visibility during the procedure. We compared performance of the active needle against an unmodified commercial passively visualized needle, measured by procedure success among operators with different levels of experience. RESULTS: MRI-guided central vein access was feasible using both the active needle and the unmodified passive needle. The active needle required less time (88 vs. 244 sec, P = 0.022) and fewer needle passes (4.5 vs. 9.1, P = 0.028), irrespective of operator experience. CONCLUSION: MRI-guided access to central veins is feasible in our animal model. When image guidance is necessary for vascular access, performing this component under MRI will allow wholly MRI-guided catheterization procedures that do not require adjunctive imaging facilities such as x-ray or ultrasound. The active needle design showed enhanced visibility, as expected. These capabilities may permit more complex catheter-based cardiovascular interventional procedures enabled by enhanced image guidance. J. Magn. Reson. Imaging 2011;. © 2011 Wiley Periodicals, Inc. |
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Authors:
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Christina E Saikus; Kanishka Ratnayaka; Israel M Barbash; Jessica H Colyer; Ozgur Kocaturk; Anthony Z Faranesh; Robert J Lederman |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of magnetic resonance imaging : JMRI Volume: 34 ISSN: 1522-2586 ISO Abbreviation: J Magn Reson Imaging Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-10-18 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9105850 Medline TA: J Magn Reson Imaging Country: United States |
Other Details:
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Languages: eng Pagination: 1159-66 Citation Subset: IM |
Copyright Information:
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Copyright © 2011 Wiley Periodicals, Inc. |
Affiliation:
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Cardiovascular and Pulmonary Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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