Methods and systems for emission computed tomography image reconstruction
AssigneeUih America, Inc.
InventorsTao Feng, Wentao Zhu, Hongdi Li
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Abstract
The present disclosure relates to systems and methods for reconstructing an Emission Computed Tomography (ECT) image. The systems, having at least one machine each of which has at least one processor and storage, may perform the methods to obtain ECT projection data, the ECT projection data corresponding to a plurality of voxels; determine a plurality of gate numbers for the plurality of voxels, the plurality of gate numbers relating to motion information of the plurality of voxels; and reconstruct an ECT image based on the ECT projection data and the plurality of gate numbers.
Claims19
A method for reconstructing an Emission Computed Tomography (ECT) image implemented on at least one machine each of which has at least one processor and storage, the method comprising:
- obtaining ECT projection data, the ECT projection data corresponding to a plurality of voxels in reconstructed image domain;
- determining a plurality of gate numbers for the plurality of voxels, the plurality of gate numbers relating to motion information of the plurality of voxels;
- determining a feature relating to the motion information of the plurality of voxels based on the plurality of gate numbers;
- and
- reconstructing an ECT image based on the ECT projection data and the feature.
A method for reconstructing an Emission Computed Tomography (ECT) image, implemented on at least one machine each of which has at least one processor and storage, the method comprising:
- obtaining ECT projection data of a subject;
- generating an intermediate image based on the ECT projection data, wherein the intermediate image comprises a plurality of voxels;
- determining a plurality of gate numbers for the plurality of voxels in the intermediate image, the plurality of gate numbers relating to motion information of the plurality of voxels;
- determining a feature based on the plurality of gate numbers;
- and
- reconstructing an ECT image of the subject based on the ECT projection data and the feature.
An Emission Computed Tomography (ECT) system comprising:
- a set of instructions for ECT image reconstruction, and
- one or more processors, when executing the set of instructions, the one or more processors are directed to:
- obtain ECT projection data, the ECT projection data corresponding to a plurality of voxels;
- determine a plurality of gate numbers for the plurality of voxels, the plurality of gate numbers relating to motion information of the plurality of voxels;
- determine a feature relating to the motion information of the plurality of voxels based on the plurality of gate numbers;
- and
- reconstruct an ECT image based on the ECT projection data and the feature.
Dependencies are inferred from the claim text.