Patent ID: 8237441
Filing Date: 2012-08-07
Classification: A61B,G01R,G01T

Abstract:
1. A method for determining the effective count rate of photons in a combined MR/emission tomography recording, the method comprising: capturing MR signals with an MR apparatus in an MR/emission tomography device to produce an MR recording of an examination object with a plurality of tissue types, each of the plurality of tissue types having a specific MR parameter; associating a plurality of emission tomography attenuation coefficients with the plurality of tissue types as a function of the MR parameter by way of an association unit, so that each emission tomography attenuation coefficient respectively corresponds to at least one of the plurality of tissue types in the examination object; capturing photons in the examination object with an emission tomography apparatus in the MR/emission tomography device to produce an emission tomography recording; and weighting the emission tomography recording with the emission tomography attenuation coefficients by way of a correction apparatus for determining the effective count rate in the plurality of tissue types and to produce a corrected emission tomography recording.