Patent ID: 9651638
Date: 2017-05-16
CPC Classifications: G01R

Claim:
1. A method for determining a magnetic resonance system activation sequence, the magnetic resonance system activation sequence comprising a multichannel pulse train having a plurality of individual HF pulse trains emitted in a parallel manner by the magnetic resonance system by way of different independent high-frequency transmit channels, the method comprising: calculating, with a control sequence determination device, the multichannel pulse train based on a predefined target magnetization using an HF pulse optimization, calculating the multichannel pulse train using the HF pulse optimization comprising optimizing a setpoint deviation of an HF local exposure value from an HF global exposure value, optimizing the setpoint deviation comprising optimizing a ratio of the HF local exposure value to the HF global exposure value to a predefined value; and changing, subsequent to optimizing the setpoint deviation, parameters relating to HF exposure such that the HF local exposure value is increased when the HF local exposure value is below a predefined setpoint value.