Methods and systems for parameter imaging
AssigneeShanghai United Imaging Healthcare Co., Ltd.
InventorsYizhang Zhao, Qing Ye
Life of this patent
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Abstract
Embodiments of the present disclosure provide a method for parameter imaging. The method includes: obtaining two scan images of an object, wherein scanning ranges of the two scan images have an overlapping region; obtaining frame information by framing the two scan images or two sets of scan data corresponding to the two scan images, wherein the overlapping region in the two scan images corresponds to two frames; and determining metabolic information of a tracer inside the object based on the frame information.
Claims20
A method for parameter imaging, comprising:
- obtaining two scan images of an object, wherein each scan image includes a series of frames, the two scan images correspond to adjacent two bed scans, and scanning ranges of the adjacent two bed scans have an overlapping region;
- obtaining frame information by framing the two scan images or two sets of scan data corresponding to the two scan images, wherein the overlapping region corresponds to two sub-images in the two scan images, and the two sub-images are divided into two frames;
- and
- determining one or more kinetic parameters based on the frame information to directly or indirectly reconstruct a parameter image, wherein the one or more kinetic parameters are related to a determination of metabolic information of a tracer inside the object.
A method for parameter imaging, comprising:
- obtaining two sets of scan data of an object by performing scanning on the object at adjacent two bed positions, wherein scanning ranges of the adjacent two bed positions have an overlapping region;
- obtaining frame information by framing the two sets of scan data or two scan images, wherein the overlapping region corresponds to two sub-images in the two scan images, and the two sub-images are designated as two frames;
- and
- determining one or more kinetic parameters based on the frame information to directly or indirectly reconstruct a parameter image, wherein the one or more kinetic parameters are related to a determination of metabolic information of a tracer inside the object.
A method for parameter imaging, comprising:
- obtaining scan data of an object;
- obtaining a kinetic model, wherein the kinetic model characterizes a kinetic property of a tracer inside the object through one or more kinetic parameters, and the one or more kinetic parameters indicate metabolic information of the tracer inside the object;
- using a bounded function to replace at least one of the one or more kinetic parameters in the kinetic model based on physiological significance of the at least one of the one or more kinetic parameters;
- and
- determining values of the one or more kinetic parameters by solving for values of the bounded function in the kinetic model based on the scan data.
Dependencies are inferred from the claim text.