Institutional Repository of Key Laboratory of Behavioral Science, CAS
PDE-based spatial smoothing: a practical demonstration of impacts on MRI brain extraction, tissue segmentation and registration | |
Xing, Xiu-Xia2; Zhou, You-Long3; Adelstein, Jonathan S.1; Zuo, Xi-Nian1,4; Zuo, XN (reprint author), NYU, Langone Med Ctr, Phyllis Green & Randolph Cowen Inst Pediat Neuros, 550 1St Ave, New York, NY 10016 USA. | |
心理所单位排序 | 4 |
摘要 | Spatial smoothing is typically used to denoise magnetic resonance imaging (MRI) data. Gaussian smoothing kernels, associated with heat equations or isotropic diffusion (ISD), are widely adopted for this purpose because of their easy implementation and efficient computation, but despite these advantages, Gaussian smoothing kernels blur the edges, curvature and texture of images. To overcome these issues, researchers have proposed anisotropic diffusion (ASD) and non-local means [i.e., diffusion (NLD)] kernels. However, these new filtering paradigms are rarely applied to MRI analyses. In the current study, using real degraded MRI data, we demonstrated the effect of denoising using ISD, ASD and NLD kernels. Furthermore, we evaluated their impact on three common preprocessing steps of MRI data analysis: brain extraction, segmentation and registration. Results suggest that NLD-based spatial smoothing is most effective at improving the quality of MRI data preprocessing and thus should become the new standard method of smoothing in MRI data processing. (C) 2011 Elsevier Inc. All rights reserved. |
关键词 | MRI denoise Partial differential equation Anisotropic diffusion Non-local means Brain extraction Segmentation Registration |
学科领域 | Physiological Psychology/biological Psychology |
2011-06-01 | |
语种 | 英语 |
发表期刊 | MAGNETIC RESONANCE IMAGING |
ISSN | 0730-725X |
卷号 | 29期号:5页码:731-738 |
期刊论文类型 | Article |
URL | 查看原文 |
收录类别 | SCI |
项目简介 | The current study was partially supported by the Startup Foundation for Distinguished Research Professor of Institute for Psychology (Y0CX492S03), National Nature Science Foundation of China (10671131), the Beijing Natural Science Foundation (1092006), the Scientific Research Foundation for the Youth (X1006012200801) and the Youth Specialized in Differential Equations (X3006012200801) of Beijing University of Technology. |
WOS记录号 | WOS:000291292500016 |
资助机构 | Startup Foundation for Distinguished Research Professor of Institute for Psychology [Y0CX492S03] ; National Nature Science Foundation of China [10671131] ; Beijing Natural Science Foundation [1092006] ; Scientific Research Foundation for the Youth [X1006012200801] ; Youth Specialized in Differential Equations of Beijing University of Technology [X3006012200801] |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.psych.ac.cn/handle/311026/12887 |
专题 | 中国科学院行为科学重点实验室 |
通讯作者 | Zuo, XN (reprint author), NYU, Langone Med Ctr, Phyllis Green & Randolph Cowen Inst Pediat Neuros, 550 1St Ave, New York, NY 10016 USA. |
作者单位 | 1.NYU, Langone Med Ctr, Phyllis Green & Randolph Cowen Inst Pediat Neuros, New York, NY 10016 USA 2.Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China 3.Henan Univ Tradit Chinese Med, Dept Acupuncture, Zhengzhou 450008, Peoples R China 4.Chinese Acad Sci, Key Lab Behav Sci, Inst Psychol, Lab Funct Connectome & Dev, Beijing 100101, Peoples R China |
推荐引用方式 GB/T 7714 | Xing, Xiu-Xia,Zhou, You-Long,Adelstein, Jonathan S.,et al. PDE-based spatial smoothing: a practical demonstration of impacts on MRI brain extraction, tissue segmentation and registration[J]. MAGNETIC RESONANCE IMAGING,2011,29(5):731-738. |
APA | Xing, Xiu-Xia,Zhou, You-Long,Adelstein, Jonathan S.,Zuo, Xi-Nian,&Zuo, XN .(2011).PDE-based spatial smoothing: a practical demonstration of impacts on MRI brain extraction, tissue segmentation and registration.MAGNETIC RESONANCE IMAGING,29(5),731-738. |
MLA | Xing, Xiu-Xia,et al."PDE-based spatial smoothing: a practical demonstration of impacts on MRI brain extraction, tissue segmentation and registration".MAGNETIC RESONANCE IMAGING 29.5(2011):731-738. |
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