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Method for suppressing sideband in MRI system, computer program, RF pulse generator, MRI system including the RF pulse generator
Method for suppressing sideband in MRI system, computer program, RF pulse generator, MRI system including the RF pulse generator
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机译:在MRI系统中抑制边带的方法,计算机程序,RF脉冲发生器,包括该RF脉冲发生器的MRI系统
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摘要
The present invention relates to a method for side-band suppression in a Magnetic Resonance imaging, MRI, system (100), the method comprising providing a first multiband RF pulse for simultaneously exciting at least two slices in a subject (118) at a first and a second frequency band (301,303) and to acquire using the MRI system (100) signals (307, 308) from the excited two slices and at least one additional signal (309) at a third frequency band (305), the additional signal (309) resulting from a sideband excitation of a slice different from the two slices; using the first multiband RF pulse for determining the additional signal (309); deriving a pre-compensating term from the first multiband RF pulse and the additional signal (309), adding the pre-compensating term to the first multiband RF pulse to obtain a second multiband RF pulse, thereby replacing the first multiband RF pulse by the second multiband RF pulse for suppressing at least part of the additional signal (309).
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