| High-resolution time-resolved contrast-enhanced MR abdominal and pulmonary angiography using a spiral-TRICKS sequence. | |
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MedLine Citation:
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PMID: 17685425 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Both high spatial resolution and high temporal resolution are desirable for contrast-enhanced magnetic resonance angiography (CE-MRA) in order to depict the arterial vasculature. In this work a fast MR pulse sequence (spiral time-resolved imaging with contrast kinetics (Spiral-TRICKS)) with spiral readout in-plane and Cartesian slice encoding was developed whereby the slices are partitioned into multiple regions and acquired in the order used with the TRICKS sequence. The combination of highly efficient spiral sampling with TRICKS acquisition significantly reduced imaging time requirements. A unit second temporal reconstructed frame rate could be achieved for three-dimensional (3D) CE-MRA without undersampling of the spiral trajectories. Image quality was improved through spiral trajectory measurement and field-map correction. Phantom and volunteer studies were performed to demonstrate the feasibility of this technique. |
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Authors:
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Jiang Du; Mark Bydder |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine Volume: 58 ISSN: 0740-3194 ISO Abbreviation: Magn Reson Med Publication Date: 2007 Sep |
Date Detail:
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Created Date: 2007-09-05 Completed Date: 2007-12-07 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8505245 Medline TA: Magn Reson Med Country: United States |
Other Details:
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Languages: eng Pagination: 631-5 Citation Subset: IM |
Copyright Information:
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Copyright (c) 2007 Wiley-Liss, Inc. |
Affiliation:
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Department of Radiology, University of California-San Diego, San Diego, California 92103-8756, USA. jiangdu@ucsd.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Artifacts Contrast Media* Feasibility Studies Fourier Analysis Humans Image Enhancement / methods* Image Processing, Computer-Assisted / methods* Imaging, Three-Dimensional / methods* Kidney / blood supply* Lung / blood supply* Magnetic Resonance Angiography / methods* Microcirculation / anatomy & histology Middle Aged Phantoms, Imaging Pulmonary Artery / anatomy & histology Pulmonary Veins / anatomy & histology Renal Artery / anatomy & histology Time Factors |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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