diaphragm can be prevented and the instantaneous respiratory motion state can be derived reliably in order to further improve the reliabilty of the detection of the position of the diaphragm the knowledge of the previously applied volume selections may be taken into account the corresponding displacement values can be used to prospectively adjust the imaging parameters which define the location and orientation of the volume of interest of the subsequent imaging sequence img a series of high quality mr images can be obtained in this way the unlabeling sequence unlbl causes a minor extension of the total scan time by 10 to 20 ms in typical cases a further sequence design in accordance with the method of the present invention is illustrated in fig3 b in this embodiment the imaging sequence img is a spin echo sequence in which the mr imaging signals are generated by means of a spatially selective 90 u00b0 rf pulse followed by a 180 u00b0 rf pulse for recovering the magnetization within the volume of interest 21 the unlabeling sequence comprises corresponding inverse rf pulses of u2212 180 u00b0 and u2212 90 u00b0 for overcoming effects due to inhomogeneities of the main magnetic field a spatially selective 180 u00b0 rf pulse may be applied additionaly as depicted in fig3 b during the unlabeling sequence unlbl fig4 a b c shows diagrams illustrating more embodiments of unlabeling sequences in accordance with the invention the diagram shows the temporal succession of radio frequency pulses rf and of magnetic field gradient pulses gx gy a patient.