| Assessing the accuracy and precision of musculoskeletal motion tracking using cine-PC MRI on a 3.0T platform. | |
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MedLine Citation:
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PMID: 20863502 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The rising cost of musculoskeletal pathology, disease, and injury creates a pressing need for accurate and reliable methods to quantify 3D musculoskeletal motion, fostering a renewed interest in this area over the past few years. To date, cine-phase contrast (PC) MRI remains the only technique capable of non-invasively tracking in vivo 3D musculoskeletal motion during volitional activity, but current scan times are long on the 1.5T MR platform (∼ 2.5 min or 75 movement cycles). With the clinical availability of higher field strength magnets (3.0T) that have increased signal-to-noise ratios, it is likely that scan times can be reduced while improving accuracy. Therefore, the purpose of this study is to validate cine-PC MRI on a 3.0T platform, in terms of accuracy, precision, and subject-repeatability, and to determine if scan time could be minimized. On the 3.0T platform it is possible to limit scan time to 2 min, with sub-millimeter accuracy (<0.33 mm/0.97°), excellent technique precision (<0.18°), and strong subject-repeatability (<0.73 mm/1.10°). This represents reduction in imaging time by 25% (42 s), a 50% improvement in accuracy, and a 72% improvement in technique precision over the original 1.5T platform. Scan time can be reduced to 1 min (30 movement cycles), but the improvements in accuracy are not as large. |
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Authors:
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Abrahm J Behnam; Daniel A Herzka; Frances T Sheehan |
Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Intramural; Validation Studies Date: 2010-09-21 |
Journal Detail:
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Title: Journal of biomechanics Volume: 44 ISSN: 1873-2380 ISO Abbreviation: J Biomech Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2010-12-17 Completed Date: 2011-04-12 Revised Date: 2012-01-05 |
Medline Journal Info:
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Nlm Unique ID: 0157375 Medline TA: J Biomech Country: United States |
Other Details:
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Languages: eng Pagination: 193-7 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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Rehabilitation Medicine Department, National Institutes of Health, Building 10 CRC RM 1-1469, 10 Center Drive MSC 1604, Bethesda, MD 20892-1604, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Biomechanics Female Humans Imaging, Three-Dimensional Knee Joint / physiology Magnetic Resonance Imaging, Cine / instrumentation*, methods* Male Movement / physiology* Musculoskeletal Physiological Processes Phantoms, Imaging* Reproducibility of Results Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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Z99 CL999999/CL/CLC NIH HHS; ZIA CL060062-07/CL/CLC NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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