| Real-time MR-guided Retrieval of Inferior Vena Cava Filters: An in Vitro and Animal Model Study. | |
| | |
MedLine Citation:
|
PMID: 21482139 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
PURPOSE: To develop interventional magnetic resonance (MR) guidance techniques for inferior vena cava (IVC) filter retrieval in vitro and demonstrate feasibility in vivo. MATERIALS AND METHODS: Three optional IVC filters and their retrieval systems were investigated. Experiments were performed on a 1.5-T MR system. Real-time MR imaging was optimized by using a custom-built IVC phantom. A three-dimensional (3D) contrast-enhanced MR venography sequence was optimized in vitro for improved detection of thrombus trapped within the filters. Filters were then retrieved in vitro and in vivo in a swine model under MR guidance. In-vivo retrieval procedure time was measured. RESULTS: The combination of one of the nitinol filters and a loop snare was suitable for real-time MR procedures. With a 90° flip angle, 3D MR venography allowed detection of simulated thrombus within the filter. A radial true fast imaging sequence with steady-state precession allowed visualization of the loop snare and IVC filter hook and successful retrieval of the filter in vivo and in vitro. In-vivo MR fluoroscopy time for retrieval was 97 seconds ± 51 (mean ± SD). CONCLUSIONS: MR-guided retrieval of a nitinol-based IVC filter by using a loop snare is feasible with the use of optimized sequences and passive device tracking. |
| | |
Authors:
|
Ming-Chen Paul Shih; Walter J Rogers; Hugo Bonatti; Klaus D Hagspiel |
Related Documents
:
|
8139839 - Clinical comparison of two panoramic modalities and posterior bite-wing radiography in ... 8761189 - Knee joint space width measurement: an experimental study of the influence of radiograp... 14623989 - 2003 william j. stickel bronze award. radiographic anatomy of the talus. 21448939 - Routine 3d magnetic resonance imaging of joints. 21479769 - Comparison of t2-weighted and contrast-enhanced t1-weighted mr imaging at 1.5 t for as... 283899 - Bone scanning in management of metastatic osteogenic sarcoma. 11274879 - Diffusion-weighted echo-planar mr imaging: clinical applications and pitfalls -- a pict... 19184699 - Determination of ct values for chlorine of resistant enteroviruses. 9802449 - Terminal ileal imaging with ileoscopy versus small-bowel meal with pneumocolon. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-4-7 |
Journal Detail:
|
Title: Journal of vascular and interventional radiology : JVIR Volume: - ISSN: 1535-7732 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
|
Created Date: 2011-4-12 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9203369 Medline TA: J Vasc Interv Radiol Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Copyright © 2011 SIR. Published by Elsevier Inc. All rights reserved. |
Affiliation:
|
Department of Radiology and Medical Imaging, University of Virginia Health System, Lee Street, Charlottesville, VA 22908; Department of Medical Imaging, Kaohsiung Medical University Hospital, Taiwan, Republic of China. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Imaging the Intraluminal Thrombus of Abdominal Aortic Aneurysms: Techniques, Findings, and Clinical ...
Next Document: Retrievability and Device-Related Complications of the G2 Filter: A Retrospective Study of 139 Filte...