Patent ID: 8452378
Filing Date: 2013-05-28
Classification: A61B,G01T,G16H

Abstract:
1. A method for determining attenuation values from MR data of a patient in order to map to PET data of the patient, comprising: detecting at least one accessory of a magnetic resonance imaging scanner and detecting a change of at least one of a position and alignment of the at least one accessory via imaging measuring, the detected at least one accessory being an accessory of an imaging examination scanner which is not stationary relative to the imaging examination scanner; comparing the detected at least one accessory with data from a database; assigning attenuation values of the at least one detected accessory to an attenuation map, contained in the database, and adapting the attenuation map based on the detected change of at least one of position and alignment of the at least one accessory, the assigned attenuation values being first attenuation values; assigning second attenuation values from the database to accessories stationary relative to the imaging examination scanner; obtaining the MR data of the patient and third attenuation values associated with the MR data; combining the first, second and third attenuation values into a map of attenuation values of the patient; and applying the map of attenuation values of the patient to the PET data.