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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1986-2-18
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pubmed:abstractText |
The time taken to collect high-resolution and high signal-to-noise (S/N) data in magnetic resonance (MR) imaging may be the limiting factor in patient throughput and in reducing patient motion. A hybrid fast-scan technique combining static and oscillatory phase-encoding gradients from two-dimensional Fourier transform (2DFT) and echo-planar imaging can reduce the time needed to collect data at the expense of loss in S/N. The flexibility of this technique is that any amplitude or frequency of oscillation of the phase-encoding gradient can be used. The technique was used for different frequencies and amplitudes, and images are presented that were acquired in one-half and one-quarter the time required with standard 2DFT techniques. The images illustrate that the hybrid and 2DFT techniques produce comparable resolution and contrast under identical conditions.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0033-8419
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
158
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
521-9
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:3941881-Brain,
pubmed-meshheading:3941881-Brain Diseases,
pubmed-meshheading:3941881-Evaluation Studies as Topic,
pubmed-meshheading:3941881-Fourier Analysis,
pubmed-meshheading:3941881-Humans,
pubmed-meshheading:3941881-Magnetic Resonance Spectroscopy,
pubmed-meshheading:3941881-Models, Structural,
pubmed-meshheading:3941881-Time Factors
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pubmed:year |
1986
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pubmed:articleTitle |
Reduction of MR imaging time by the hybrid fast-scan technique.
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pubmed:publicationType |
Journal Article
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