Reduction of MR imaging time by the hybrid fast-scan technique
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.
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
1986 |
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| Erschienen: |
1986 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:158 |
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| Enthalten in: |
Radiology - 158(1986), 2 vom: 05. Feb., Seite 521-9 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Haacke, E M [VerfasserIn] |
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| Themen: |
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| Anmerkungen: |
Date Completed 18.02.1986 Date Revised 19.11.2015 published: Print Citation Status MEDLINE |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM039231275 |
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| 100 | 1 | |a Haacke, E M |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Reduction of MR imaging time by the hybrid fast-scan technique |
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| 500 | |a Date Completed 18.02.1986 | ||
| 500 | |a Date Revised 19.11.2015 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a 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 | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Bearden, F H |e verfasserin |4 aut | |
| 700 | 1 | |a Clayton, J R |e verfasserin |4 aut | |
| 700 | 1 | |a Linga, N R |e verfasserin |4 aut | |
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