| High-field-strength magnetic resonance: potential and limits. | |
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MedLine Citation:
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PMID: 17621228 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To expatiate on the possible advantages and disadvantages of high magnetic field strengths for magnetic resonance imaging and, in particular, for magnetic resonance angiography. METHODS AND RESULTS: A review of the available literature is given, presenting many of the advantages and disadvantages of imaging at higher field strengths. Focus is put on imaging at 3 to 7 T. Early results at 7 T are presented; these results indicate that several of the angiographic techniques commonly used at lower field strengths show promise for improvement by taking advantage of the higher signal and susceptibility sensitivity at 7 T. CONCLUSIONS: The drive toward higher field strengths, both for the purpose of fundamental research and for clinical diagnostic imaging, is likely to continue. New applications using the unique properties of high field strength will almost certainly emerge as researchers gain more experience. The ultimate limiting factor is likely to be the physiological effects at high field strengths. However, this limit seems to lie at field strengths higher than 7 T because early experience shows good tolerance of 7 T examinations. |
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Authors:
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Mark E Ladd |
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Publication Detail:
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Type: Journal Article; Review |
Journal Detail:
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Title: Topics in magnetic resonance imaging : TMRI Volume: 18 ISSN: 0899-3459 ISO Abbreviation: Top Magn Reson Imaging Publication Date: 2007 Apr |
Date Detail:
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Created Date: 2007-07-10 Completed Date: 2007-10-09 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8913523 Medline TA: Top Magn Reson Imaging Country: United States |
Other Details:
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Languages: eng Pagination: 139-52 Citation Subset: IM |
Affiliation:
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Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Duisburg-Essen, Essen, Germany. mark.ladd@uni-duisburg-essen.de |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Cerebral Angiography
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methods,
trends Contrast Media Electromagnetic Fields Humans Magnetic Resonance Imaging / instrumentation, methods*, trends* Magnetics / instrumentation Sensitivity and Specificity |
| 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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