Global ICC-based eddy current correction in diffusion weighted imaging

机译：基于全局ICC的扩散加权成像中的涡流校正

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摘要

In diffusion weighted echo planar imaging, eddy current distortion is a common reason for deformation of diffusion weighted imaging, which will affect the calculation result of diffusion tensors. A global ICC-based correction method is proposed for the eddy current distortion of the MRI weighted images, which combines the CSF-Mask-ICC registration with a global error correction. It can eliminate the influence of contrast differences at the cerebrospinal fluid area under high b-value. The registration accuracies between the adjacent slices are considered in order to obtain the global optimal registration parameters. Compared with the existing methods, the proposed method can effectively improve the accuracy of the eddy current correction.

机译：在扩散加权回波平面成像中，涡流畸变是扩散加权成像变形的常见原因，会影响扩散张量的计算结果。针对MRI加权图像的涡流畸变，提出了一种基于全局ICC的校正方法，该方法结合了CSF-Mask-ICC配准和全局误差校正。它可以消除高b值下脑脊液区域对比度差异的影响。为了获得全局最优配准参数，考虑相邻切片之间的配准精度。与现有方法相比，该方法可以有效提高涡流校正的精度。

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来源
《BMEI 2012;International Conference on Biomedical Engineering and Informatics》|2012年|274-277|共4页
会议地点 Chongqing(CN);Chongqing(CN)
作者
Yu Kai; Dai Fei; Yuan Zhenming; Xu Dongrong;
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作者单位

School of Information Science and Engineering, Hangzhou Normal University, Hangzhou, China;

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原文格式 PDF
正文语种 eng
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关键词
Diffusion weighted imaging; Eddy current correction; Image registration; Iterative cross correlation;

机译：扩散加权成像；涡流校正；图像配准；迭代互相关；;

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专利

1. Eddy current correction in diffusion-weighted imaging using pairs of images acquired with opposite diffusion gradient polarity. [J] . Bodammer N, Kaufmann J, Kanowski M, Magnetic resonance in medicine: official journal of the Society of Magnetic Resonance in Medicine . 2004,第1期

机译：扩散加权成像中的涡流校正，使用以相反扩散梯度极性获取的成对图像。
2. High-field diffusion MR histology: image-based correction of eddy-current ghosts in diffusion-weighted rapid acquisition with relaxation enhancement (DW-RARE). [J] . Tyszka JM, Frank LR Magnetic resonance in medicine: official journal of the Society of Magnetic Resonance in Medicine . 2009,第3期

机译：高场扩散MR组织学：对基于扩散的加权快速采集中具有松弛增强（DW-RARE）的涡流重影进行基于图像的校正。
3. Improving the correction of eddy current-induced distortion in diffusion-weighted images by excluding signals from the cerebral spinal fluid [J] . LiuW., LiuX., YangG., Computerized Medical Imaging and Graphics: The Official Jounal of the Computerized Medical Imaging Society . 2012,第7期

机译：通过排除脑脊髓液中的信号来改善弥散加权图像中涡流引起的畸变的校正
4. Global ICC-based eddy current correction in diffusion weighted imaging [C] . Yu Kai, Dai Fei, Yuan Zhenming, International Conference on Biomedical Engineering and Informatics . 2012

机译：基于全球ICC的涡流校正在扩散加权成像中
5. Evaluation of Eddy-current Distortion and EPI Distortion Corrections in MR Diffusion Imaging Using Log-demons DIR Method [D] . Arsenault, Theodore Higgins. 2020

机译：使用Log-Demons DIR方法评估MR扩散成像中的涡流失真和EPI失真校正
6. High-Field Diffusion MR Histology: Image-Based Correction of Eddy-Current Ghosts in Diffusion-Weighted Rapid Acquisition With Relaxation Enhancement (DW-RARE) [O] . J. Michael Tyszka, Lawrence R. Frank -1

机译：高场扩散MR组织学：基于图像的辐射电流鬼魂在扩散加权的快速采集中的校正（DW稀有）
7. Eddy current correction in diffusion-weighted imaging using pairs of images acquired with opposite diffusion gradient polarity [O] . Nils Bodammer, J�rn Kaufmann, Martin Kanowski, 2003

机译：使用具有相反扩散梯度极性的对图像的扩散加权成像中的涡流校正

Global ICC-based eddy current correction in diffusion weighted imaging

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