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pulssequenz to measure the timing of a river in a vessel using magnetic resonance
pulssequenz to measure the timing of a river in a vessel using magnetic resonance
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机译:pulssequenz使用磁共振测量船只中河流的时间
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摘要
In the pulse sequence according to the invention, a layer of the test object that is perpendicular to the direction of flow is firstly selectively excited. A nuclear magnetic resonance signal is read out as echo signal (S) under the influence of a Read gradient (GR) that is perpendicular to the layer selection gradient. The signals obtained in n sequential steps are represented on a time axis. Thus, the phase code gradient, and therefore spatial resolution in one direction are dispensed with by comparison with a conventional spin-warp sequence. Instead of this, a temporal resolution of the flow is obtained. …IMAGE…
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