A magnetic resonance system , comprising: a magnetic resonance scanner configured for thermographic measurement; one or more processors configured to: receive thermal image data registered to a common space from the magnetic resonance scanner over a time period including at least one of heating and cooling and repeatedly reconstruct thermal images registered to the common space over time; so as to reconstruct at least one thermal image in which each voxel of a region of interest includes a measure of temperature change; for each voxel of the region of interest, construct a thermal change curve representing the measured temperature change over time for this voxel which includes the period of at least one of heating and cooling; and identify thermally abnormal voxels in the thermal image by comparing measured temperature change with an expected temperature change by measuring an area between the thermal change curve for the measured temperature change and a line curve for the expected temperature change, the area defining a probability of the voxel being a thermally abnormal voxel; and a display configured to display at least one reconstructed image with the identified thermally abnormal voxels. a magnetic resonance scanner configured for thermographic measurement; one or more processors configured to: receive thermal image data registered to a common space from the magnetic resonance scanner over a time period including at least one of heating and cooling and repeatedly reconstruct thermal images registered to the common space over time; so as to reconstruct at least one thermal image in which each voxel of a region of interest includes a measure of temperature change; for each voxel of the region of interest, construct a thermal change curve representing the measured temperature change over time for this voxel which includes the period of at least one of heating and cooling; and identify thermally abnormal voxels in the thermal image by comparing measured temperature change with an expected temperature change by measuring an area between the thermal change curve for the measured temperature change and a line curve for the expected temperature change, the area defining a probability of the voxel being a thermally abnormal voxel; and receive thermal image data registered to a common space from the magnetic resonance scanner over a time period including at least one of heating and cooling and repeatedly reconstruct thermal images registered to the common space over time; so as to reconstruct at least one thermal image in which each voxel of a region of interest includes a measure of temperature change; for each voxel of the region of interest, construct a thermal change curve representing the measured temperature change over time for this voxel which includes the period of at least one of heating and cooling; and identify thermally abnormal voxels in the thermal image by comparing measured temperature change with an expected temperature change by measuring an area between the thermal change curve for the measured temperature change and a line curve for the expected temperature change, the area defining a probability of the voxel being a thermally abnormal voxel; and a display configured to display at least one reconstructed image with the identified thermally abnormal voxels. <EOS>