Performance-optimized method for determining valid parameter datasets

An apparatus for determining a valid parameter dataset for a protocol for a magnetic resonance tomography (MRT) examination by a magnetic resonance tomography facility, the apparatus comprising:

• an input facility configured to import, at the magnetic resonance tomography facility, at least one parameter configured to be used for performing the MRT examination, the at least one parameter comprising a reference value for a number of required coil channels;
• an interface configured to capture at least one current system value representing an availability of a system resource for the MRT examination;
• a processor configured to calculate system resources required to perform the MRT examination using the at least one parameter,
• wherein the processor is further configured to execute a prepare function that checks whether, with regard to the captured current system values, the at least one parameter is implementable in the MRT examination, and
• wherein, when the at least one parameter is not implementable, the processor is further configured to:
• calculate a modifying function for modifying the parameters based on the current system values and the required system resources, wherein a linear modifying function or a quadratic modifying function is determined dynamically based on a result of the prepare function;
• modify the parameters in steps in accordance with the calculated modifying function;
• and
• execute repeatedly the prepare function in order to determine the valid parameter dataset.

A magnetic resonance tomography facility comprising:

• an apparatus configured to determine a valid parameter dataset for a protocol for a magnetic resonance tomography (MRT) examination by the magnetic resonance tomography facility, wherein the apparatus comprises:
• an input facility configured to import, at the magnetic resonance tomography facility, at least one parameter configured to be used for performing the MRT examination, the at least one parameter comprising a reference value for a number of required coil channels;
• an interface configured to capture at least one current system value representing an availability of a system resource for the MRT examination;
• a processor configured to calculate system resources required to perform the MRT examination using the at least one parameter,
• wherein the processor is further configured to execute a prepare function that checks whether, with regard to the captured current system values, the at least one parameter is implementable in the MRT examination, and
• wherein, when the at least one parameter is not implementable, the processor is configured to:
• calculate a modifying function for modifying the parameters based on the current system values and the required system resources, wherein a linear modifying function or a quadratic modifying function is determined dynamically based on a result of the prepare function;
• modify the parameters in steps in accordance with the calculated modifying function;
• and
• execute repeatedly the prepare function in order to determine the valid parameter dataset.