Patent ID: 9581667
Date: 2017-02-28
CPC Classifications: G01R

Claim:
1. A method to acquire magnetic resonance (MR) data, comprising: from a control unit, operating an MR data acquisition unit to execute a multi-echo MR data acquisition sequence in which at least two gradient echoes are formed to sequentially occur, with a predetermined time difference between successive gradient echoes, and in which gradient pulses are activated that do not exceed a predetermined maximum pulse amplitude and a predetermined maximum gradient pulse rate-of-change; in said control unit, automatically determining a ratio between (a) said predetermined time difference and (b) a quotient of the predetermined maximum gradient pulse amplitude and the predetermined maximum gradient pulse rate-of-change; from said control unit, operating said MR data acquisition unit in said multi-echo MR data acquisition sequence to activate a pre-phasing gradient pulse; from said control unit, operating said MR data acquisition unit in said multi-echo MR data acquisition sequence to readout MR data associated with one of said at least two gradient echoes by activating a first readout gradient pulse having first readout gradient pulse parameters that include a flattop time and an amplitude, and setting said first readout gradient pulse parameters in said control unit dependent on the determined ratio; from said control unit, operating said MR data acquisition unit in said multi-echo MR data acquisition sequence to read out MR data associated with one of said at least two gradient echoes by activating a second readout gradient pulse having second readout gradient pulse parameters that include a flattop time and an amplitude, and setting said second readout gradient pulse parameters in said control unit dependent on the determined ratio; and entering the MR data read out with said first readout gradient pulse and said second readout gradient pulse into a memory organized as k-space and, via said control unit, making contents of said memory available in electronic form for further processing thereof.