Method for operating an MRT installation, with the method steps (S1-S12) - predefining a planned measurement procedure for examining an examination object, - calculating, for the examination object, by means of a calculation facility of the MRT installation, a specific absorption rate that is likely to occur when using the planned measurement procedure and is determined by a radiofrequency power irradiated into the examination object, and/or determining a gradient stimulation that is likely to occur when using the planned measurement procedure and is generated by a rate of change of a magnetic gradient field in the examination object, - if the calculation for the planned measurement procedure results in an exceeding of a respective predefined limit value for the specific absorption rate and/or the gradient stimulation, then automatically generating a planned modified measurement procedure by automatically modifying the previous planned measurement procedure by means of the calculation facility while maintaining at least one predefined boundary condition which is different from falling below the respective limit value and specifies at least one criterion to be fulfilled at a minimum for the modified measurement procedure, - automatically iteratively performing the calculation of the specific absorption rate and/or gradient stimulation likely to occur for the respective modified measurement procedure and the automatic generation at least up to the calculation results in the current modified measurement procedure not exceeding the respective predefined limit value, - outputting at least the current modified measurement procedure, which according to the calculation is not likely to lead to exceeding the respective predefined limit value and which fulfils the at least one predefined boundary condition, characterised in that - a plurality of modified measurement procedures are determined, which in each case are not likely to lead to exceeding the respective limit value, and - as a function of the at least one predefined boundary condition, the measurement procedure of the determined modified measurement procedures which has the highest level of fulfilment or level of over-fulfilment with regard to the at least one predefined boundary condition is automatically selected for use. - predefining a planned measurement procedure for examining an examination object, - calculating, for the examination object, by means of a calculation facility of the MRT installation, a specific absorption rate that is likely to occur when using the planned measurement procedure and is determined by a radiofrequency power irradiated into the examination object, and/or determining a gradient stimulation that is likely to occur when using the planned measurement procedure and is generated by a rate of change of a magnetic gradient field in the examination object, - if the calculation for the planned measurement procedure results in an exceeding of a respective predefined limit value for the specific absorption rate and/or the gradient stimulation, then automatically generating a planned modified measurement procedure by automatically modifying the previous planned measurement procedure by means of the calculation facility while maintaining at least one predefined boundary condition which is different from falling below the respective limit value and specifies at least one criterion to be fulfilled at a minimum for the modified measurement procedure, - automatically iteratively performing the calculation of the specific absorption rate and/or gradient stimulation likely to occur for the respective modified measurement procedure and the automatic generation at least up to the calculation results in the current modified measurement procedure not exceeding the respective predefined limit value, - outputting at least the current modified measurement procedure, which according to the calculation is not likely to lead to exceeding the respective predefined limit value and which fulfils the at least one predefined boundary condition, - a plurality of modified measurement procedures are determined, which in each case are not likely to lead to exceeding the respective limit value, and - as a function of the at least one predefined boundary condition, the measurement procedure of the determined modified measurement procedures which has the highest level of fulfilment or level of over-fulfilment with regard to the at least one predefined boundary condition is automatically selected for use.