| Remote control of catheter tip deflection: an opportunity for interventional MRI. | |
| | |
MedLine Citation:
|
PMID: 12465124 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
This study seeks to exploit the high magnetic field environment of a clinical MRI scanner and demonstrate the technical feasibility of developing a catheter whose tip can be remotely oriented within the magnetic field by applying a DC current to a coil wound around the catheter tip to generate a magnetic moment and consequent deflection. To achieve arbitrary three-dimensional deflections, a three-axis coil was wound on a 1.5 Fr cylindrical catheter. By applying DC currents in the 100 mA range, this catheter was successfully guided through a 3D phantom maze, mimicking the vasculature, under MR imaging guidance. Feasibility was demonstrated that the strong ambient magnetic field of the MR scanner offers a special opportunity to develop simple devices that can be remotely steered to sites of clinical interest. |
| | |
Authors:
|
T P L Roberts; W V Hassenzahl; S W Hetts; R L Arenson |
Related Documents
:
|
18281944 - Nanoscaling laws of magnetic nanoparticles and their applicabilities in biomedical scie... 17842754 - Magnetic anomalies over a young oceanic ridge off vancouver island. 12687884 - Influence of mobile magnetic resonance imaging on implanted pacemakers. 2980604 - High field strength magnetic resonance of extra-axial spinal pathology. 6583714 - Clinical correlates of sulcal widening in chronic schizophrenia. 17598764 - Short-lasting unilateral neuralgiform headache attacks with conjunctival injection and ... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine Volume: 48 ISSN: 0740-3194 ISO Abbreviation: Magn Reson Med Publication Date: 2002 Dec |
Date Detail:
|
Created Date: 2002-12-04 Completed Date: 2003-03-21 Revised Date: 2004-11-17 |
Medline Journal Info:
|
Nlm Unique ID: 8505245 Medline TA: Magn Reson Med Country: United States |
Other Details:
|
Languages: eng Pagination: 1091-5 Citation Subset: IM |
Copyright Information:
|
Copyright 2002 Wiley-Liss, Inc. |
Affiliation:
|
Department of Radiology, University of California, San Francisco, California, USA. Tim.Roberts@utoronto.ca |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Artifacts Catheterization Humans Image Enhancement* Image Processing, Computer-Assisted Magnetic Resonance Angiography / methods* Models, Theoretical Phantoms, Imaging Radiology, Interventional* Sensitivity and Specificity Vascular Diseases / diagnosis* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Signal behavior in continuously ramped 2D TrueFISP for whole-body imaging.
Next Document: RF heating due to conductive wires during MRI depends on the phase distribution of the transmit fiel...