METHOD AND APPARATUS CONTROL AND ADJUSTMENT OF PULSE OPTIMIZATION OF A MAGNETIC RESONANCE SYSTEM

摘要

In an apparatus and method for pulse optimization adjustment a checking is made as to whether the optimization time resulting from a calculation time for pulse optimization of a pulse sequence section for a modifiable time interval at a predefined gradient grid density, and an associated implementation time, exceeds a real time resulting from the time interval and a buffer time. The gradient grid density for pulse optimization is reduced by a factor f if the optimization time exceeds the real time.

主权项

1. An apparatus for controlling and adjusting optimization of a pulse sequence used to operate a magnetic resonance system, said apparatus comprising:
an input interface that receives an unoptimized pulse sequence; a checking computer configured to check whether an optimization time, resulting from a calculation time for pulse optimization of a portion of said unoptimized pulse sequence for a modifiable time interval therein, at a predetermined gradient grid density, and an associated implementation time, exceeds a real time resulting from said time interval plus a buffer time; a reduction computer, in communication with said checking computer, configured to reduce the gradient grid density from said predetermined grid density by a factor f when said checking computer determines that said optimization time exceeds said real time; an output interface; and said checking computer being configured to evaluate an effect of reducing said gradient grid density by said factor f on said optimization time and to emit an output signal in electronic form via output interface, to said magnetic resonance system, dependent on the evaluation.