Patent ID: 9445722
Filing Date: 2016-09-20
CPC Classification: A61B,G01R

Claim Text:
1. A method for performing a combined magnetic resonance/positron emission tomography scan of an examination object in a magnetic resonance/positron emission tomography (MR/PET) system, the method comprising: acquiring first magnetic resonance data using a first readout gradient field such that, at a location of a field of view of a magnetic resonance system of the MR/PET system, a distortion caused by a nonlinearity of the first readout gradient field and a distortion caused by a B generating first magnetic resonance images on the basis of the first magnetic resonance data; determining an attenuation correction map for a positron emission tomography scan on the basis of the first magnetic resonance images; acquiring positron emission data based on the first magnetic resonance images and second magnetic resonance data based on the first magnetic resonance images, the acquiring acquires the second magnetic resonance data using a second readout gradient field; and correcting the positron emission data using the attenuation correction map.