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Technical Note: Characterization and correction of gradient nonlinearity induced distortion on a 1.0 T open bore MR-SIM

机译：技术说明：在1.0 T开孔MR-SIM上表征和校正梯度非线性引起的畸变

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摘要

Purpose:Distortions in magnetic resonance imaging (MRI) compromise spatial fidelity, potentially impacting delineation and dose calculation. We characterized 2D and 3D large field of view (FOV), sequence-independent distortion at various positions in a 1.0 T high-field open MR simulator (MR-SIM) to implement correction maps for MRI treatment planning.

机译：目的：磁共振成像（MRI）中的失真会损害空间保真度，从而可能影响轮廓和剂量计算。我们在1.0 T高场开放式MR模拟器（MR-SIM）的各个位置上对2D和3D大视场（FOV），与序列无关的畸变进行了表征，以实现MRI治疗计划的校正图。

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期刊名称 Medical Physics
作者
Ryan G. Price; Mo Kadbi; Joshua Kim; James Balter; Indrin J. Chetty; Carri K. Glide-Hurst;
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作者单位

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年(卷),期 -1(42),10
年度 -1
页码 5955–5960
总页数 6
原文格式 PDF
正文语种
中图分类放射医学;影像诊断学;
关键词
MRI treatment planning distortion correction gradient non-linearity;

机译：MRI;治疗计划;失真;校正;梯度非线性;

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专利

1. Technical Note: Characterization and correction of gradient nonlinearity induced distortion on a 1.0 T open bore MR-SIM [J] . Price Ryan G., Kadbi Mo, Kim Joshua, Medical Physics . 2015,第10期

机译：技术说明：在1.0 T开孔MR-SIM上表征和校正梯度非线性引起的畸变
2. Geometric distortion characterization and correction for the 1.0?T Australian MRI‐linac system using an inverse electromagnetic method [J] . Medical Physics . 2020,第3期

机译：使用反向电磁法的1.0？T澳大利亚MRI-LINAC系统的几何失真特征和校正
3. Technical Note: Correction of geometric x‐ray image intensifier distortion based on digital image correlation [J] . Medical Physics . 2020,第2期

机译：技术说明：基于数字图像相关的几何X射线图像增强器失真校正
4. Computational Algorithm for Modeling and Correction of Gradient Nonlinearity Distortions in Magnetic Resonance Imaging [C] . Tom S. Lee, Keith E. Schubert, Reinhard W. Schulte World Congress on Engineering and Computer Science . 2008

机译：磁共振成像中梯度非线性失真的建模与校正计算算法
5. Analysis and Characterization of Nonlinear Distortion due to High Power Amplifiers in Wireless Communication Systems. [D] . Helaly, Tarek. 2010

机译：无线通信系统中由于大功率放大器引起的非线性失真的分析和表征。
6. Gradient nonlinearity calibration and correction for a compact asymmetric magnetic resonance imaging gradient system [O] . S Tao, J D Trzasko, J L Gunter, -1

机译：紧凑型非对称磁共振成像梯度系统的梯度非线性校准和校正
7. Software-Based Algorithm for Modeling and Correction of Gradient Nonlinearity Distortions in Magnetic Resonance Imaging [O] . Tom S. Lee, Keith E. Schubert, Reinhard W. Schulte, 2010

机译：基于软件的磁共振成像梯度非线性畸变建模与校正算法

Technical Note: Characterization and correction of gradient nonlinearity induced distortion on a 1.0 T open bore MR-SIM

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