Method and system for motion compensation in hybrid PET-MR imaging
AssigneeGE Precision Healthcare LLC
InventorsTimothy W. Deller, Florian Wiesinger, Floribertus P. Heukensfeldt Jansen, Anja C. S. Brau, Kristen Ann Wangerin
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Abstract
A method of controlling and processing data from a hybrid PET-MR imaging system includes acquiring a positron emission tomographic (PET) dataset over a time period, wherein the PET dataset is affected by a quasi-periodic motion of the patient, and acquiring magnetic resonance (MR) data during the time period such that the acquisition time of the MR data relative to the PET dataset is known. A characteristic of the patient motion is then determined based on the PET dataset and the MR data is processed based on the characteristic of patient motion.
Claims20
A method of processing data from a hybrid PET-MR imaging system, the method comprising:
- acquiring a positron emission tomographic (PET) dataset over a time period, wherein the PET dataset is affected by a quasi-periodic motion of a patient;
- acquiring magnetic resonance (MR) data during the time period such that an acquisition time of the MR data relative to the PET dataset is known;
- determining with a controller a characteristic of patient motion based on the PET dataset;
- processing with the controller the MR data based on the characteristic of patient motion determined from the PET dataset to generate at least one corrected MR image;
- and
- displaying the at least one corrected MR image.
A hybrid PET-MR imaging system comprising:
- a positron emission tomographic (PET) imaging portion configured to generate PET data of a patient;
- a magnetic resonance (MR) imaging portion configured to generate MR data of the patient;
- a controller configured to:
- acquire a PET dataset over a time period from the PET imaging portion, wherein the PET dataset is affected by a quasi-periodic motion of the patient;
- acquire MR data with the MR imaging portion during the time period such that an acquisition time of the MR data relative to the PET dataset is known;
- determine a characteristic of patient motion based on the PET dataset;
- process the MR data based on the characteristic of patient motion determined from the PET dataset to generate at least one corrected MR image;
- and
- display the at least one corrected MR image.
Dependencies are inferred from the claim text.