Attenuation map for combined magnetic resonance/positron emission tomography imaging

A magnetic resonance/positron emission tomography system, comprising:

• a magnetic resonance imaging scanner, embodied to at least
• acquire magnetic resonance data with at least one imaging scan in the magnetic resonance/positron emission tomography system;
• determine an attenuation map of a patient using the magnetic resonance data acquired;
• and
• provide the attenuation map of the patient for correcting PET data of the patient acquired with the magnetic resonance/positron emission tomography system,
• wherein acquiring of the magnetic resonance data includes the magnetic resonance imaging scanner being embodied to at least:
• acquire first items of projection data of the patient in a substantially axial direction of the patient,
• acquire second items of projection data of the patient in the substantially axial direction of the patient,
• determine third items of projection data by merging the first items of projection data of the patient and the second items of projection data of the patient acquired,
• determine mapping of the patient using the third items of projection data determined,
• adapt at least one sequence parameter of the at least one imaging scan in accordance with the mapping of the patient, and
• perform the at least one imaging scan to acquire the magnetic resonance data.

A non-transitory computer readable medium including program code segments, loadable into a computing unit of a magnetic resonance/positron emission tomography system, wherein when the program code segments are executed on the computing unit, a method is carried out for providing an attenuation map of a patient, suitable for correcting PET data of the patient acquired with combined magnetic resonance/positron emission tomography imaging in the magnetic resonance positron emission tomography system, the method comprising:

• acquiring magnetic resonance data with at least one imaging scan in the magnetic resonance/positron emission tomography system;
• determining the attenuation map of the patient using the magnetic resonance data acquired;
• and
• providing the attenuation map of the patient for correcting the PET data of the patient acquired with the combined magnetic resonance/positron emission tomography imaging,
• wherein the acquiring of the magnetic resonance data includes:
• acquiring first items of projection data of the patient in a substantially axial direction of the patient,
• acquiring second items of projection data of the patient in the substantially axial direction of the patient,
• determining third items of projection data by merging the first items of projection data of the patient and the second items of projection data of the patient acquired,
• determining mapping of the patient using the third items of projection data determined,
• adapting at least one sequence parameter of the at least one imaging scan in accordance with the mapping of the patient, and
• performing the at least one imaging scan to acquire the magnetic resonance data.