An MR imaging method with an imaging workflow is provided. Within the scope of the MR imaging method, at least one breath-holding command is output to a patient. An MR imaging is performed with an MR imaging method that may be used with free breathing. A breathing movement of the patient is detected based on measured data acquired when performing the MR imaging method. A time relationship is determined between the breathing movement of the patient and the breath-holding command. The imaging workflow is modified as a function of the determined time relationship. A breathing monitoring device and a magnetic resonance imaging system are also provided.
