发明名称 Interference compensation in MR measurements on moving objects through adjustment of the measurement conditions
摘要 A method for generating magnetic resonance (MR) images or MR spectra of at least one partial area (2a) of a moving object (2) with at least one motion sequence that is repeated during consecutive motion states (BZ) is proposed. In a learning measurement, a monitor signal of the repeating motion sequence is recorded, and MR test data of the partial area (2a) of the object (2) are recorded under known measurement conditions, wherein the MR test data is associated with the motion states (BZ) of the motion sequence. In an evaluation step, the MR test data of the motion states (BZ) of the motion sequence are compared to each other with respect to at least one parameter, and the variation of the at least one parameter over the motion sequence is determined. The instantaneous motion state (BZ) of the object (2) in the motion sequence is constantly determined in a target measurement during recording of the MR images or MR spectra of the partial area (2a) via a monitor signal, and the associated variation of the at least one parameter is constantly compensated for by corresponding variation of the measurement conditions. The quality of MR measurements for recording moving objects is thereby improved, in particular, when retroactive calculation of disturbances in the measured MR data is not possible.
申请公布号 US2011199083(A1) 申请公布日期 2011.08.18
申请号 US20110929596 申请日期 2011.02.03
申请人 BRUKER BIOSPIN MRI GMBH 发明人 NAUERTH ARNO
分类号 G01R33/48 主分类号 G01R33/48
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