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Method and magnetic resonance apparatus for non-selective excitation of nuclear spin signals in an examination subject
专利权人:
David Grodzki
发明人:
David Grodzki
申请号:
US13630232
公开号:
US09523755B2
申请日:
2012.09.28
申请国别(地区):
US
年份:
2016
代理人:
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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