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Magnetic resonance imaging apparatus and calculation method of pulse sequence installed in magnetic resonance imaging apparatus
Magnetic resonance imaging apparatus and calculation method of pulse sequence installed in magnetic resonance imaging apparatus
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机译:磁共振成像设备和安装在磁共振成像设备中的脉冲序列的计算方法
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摘要
When imaging is performed by executing a pulse sequence on an MRI apparatus, silencing is realized with securing sufficient application amount of crusher without extending the application time thereof. In the pulse sequence carried by the MRI apparatus, at least one gradient magnetic field pulse included in the pulse sequence has a waveform synthesized from two or more base waves shifting along the time axis direction (synthesized waveform), and the base waves have a smoothly changing waveform convex upward. The pulse of the synthesized waveform is generated from one or more trapezoidal or triangular base pulses by a waveform conversion part of a computer of the MRI apparatus or an external computer.
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