Invention Grant
US09595121B2 Systems and methods for PET penalized-likelihood image reconstruction with spatially varying smoothing parameters
有权
用空间变化的平滑参数进行PET惩罚似然图像重建的系统和方法
- Patent Title: Systems and methods for PET penalized-likelihood image reconstruction with spatially varying smoothing parameters
- Patent Title (中): 用空间变化的平滑参数进行PET惩罚似然图像重建的系统和方法
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Application No.: US13667737Application Date: 2012-11-02
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Publication No.: US09595121B2Publication Date: 2017-03-14
- Inventor: Sangtae Ahn , Evren Asma , Ravindra Manjeshwar , Steven Ross
- Applicant: General Electric Company
- Applicant Address: US NY Niskayuna
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Niskayuna
- Agent Melissa K. Dobson
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06T11/00
Abstract:
A computer-implemented method for penalized-likelihood reconstruction of a Positron Emission Tomography (PET) image includes generating a regularization function in which a smoothing parameter is modulated by one or more data-independent spatially variable modulation factors to compensate for sensitivity variations in a PET voxel dataset, and reconstructing the PET image from the PET emission dataset using the regularization function.
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