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Method and magnetic resonance apparatus for non-selective excitation of nuclear spin signals in an examination subject
Method and magnetic resonance apparatus for non-selective excitation of nuclear spin signals in an examination subject
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机译:用于非选择性激发检查对象中核自旋信号的方法和磁共振设备
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摘要
In a method for non-selective excitation of nuclear spin signals in an examination subject with a magnetic resonance system, RF excitation pulses are radiated to excite nuclear spin signals in the examination subject with simultaneous switching of gradients for spatial coding of the excited nuclear spin signals, wherein the RF excitation pulses are designed such that the base frequency of a radiated RF excitation pulse is adapted to the simultaneously switched gradient. By the dynamic adaptation of the radiated RF excitation pulses to the respective simultaneously switched gradients, artifacts due to insufficiently excited nuclear spins in an examination region to be examined (in particular even in examination regions that are arranged off-center) are avoided.
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