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Rotating-frame gradient fields for magnetic resonance imaging and nuclear magnetic resonance in low fields
Rotating-frame gradient fields for magnetic resonance imaging and nuclear magnetic resonance in low fields
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机译:用于低场磁共振成像和核磁共振的旋转框架梯度场
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摘要
A system and method for Fourier encoding a nuclear magnetic resonance (NMR) signal is disclosed. A static magnetic field B0 is provided along a first direction. An NMR signal from the sample is Fourier encoded by applying a rotating-frame gradient field BG superimposed on the B0, where the BG comprises a vector component rotating in a plane perpendicular to the first direction at an angular frequency ω in a laboratory frame. The Fourier-encoded NMR signal is detected.
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机译:公开了一种用于傅立叶编码核磁共振(NMR)信号的系统和方法。沿第一方向提供静磁场B 0 Sub>。通过施加叠加在B 0 Sub>上的旋转帧梯度场B G Sub>来对样品的NMR信号进行傅里叶编码,其中B G Sub>包括在实验室框架中以角频率ω在垂直于第一方向的平面中旋转的矢量分量。检测到傅立叶编码的NMR信号。
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