[1]潘运达,徐龙春,何乐民,等. 弥散张量成像纤维束跟踪中噪声去除方法研究[J].中国医学物理学杂志,2018,35(10):1150-1154.[doi:DOI:10.3969/j.issn.1005-202X.2018.10.007]
 PAN Yunda,XU Longchun,HE Lemin,et al. Noise elimination methods for fibre tracking in diffusion tensor imaging[J].Chinese Journal of Medical Physics,2018,35(10):1150-1154.[doi:DOI:10.3969/j.issn.1005-202X.2018.10.007]
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 弥散张量成像纤维束跟踪中噪声去除方法研究()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
35卷
期数:
2018年第10期
页码:
1150-1154
栏目:
医学影像物理
出版日期:
2018-10-25

文章信息/Info

Title:
 Noise elimination methods for fibre tracking in diffusion tensor imaging
文章编号:
1005-202X(2018)10-1150-05
作者:
 潘运达1徐龙春2何乐民1张敏风2张岗2邹越2赵文波2宋学睿1段洛炜1张光玉1
 1.泰山医学院放射学院, 山东 泰安 271016; 2.泰山医学院附属医院, 山东 泰安271000
Author(s):
 PAN Yunda1 XU Longchun2 HE Lemin1 ZHANG Minfeng2 ZHANG Gang2 ZOU Yue2 ZHAO Wenbo2 SONG Xuerui1 DUAN Luowei1 ZHANG Guangyu1
 1. College of Radiology, Taishan Medical University, Tai’an 271016, China; 2. Affiliation Hospital of Taishan Medical University, Tai’an 271000, China
关键词:
 弥散张量成像中值滤波高斯平滑滤波最大最小值滤波混合滤波纤维束跟踪噪声去除方法
Keywords:
 Keywords: diffusion tensor imaging median filter Gaussian smoothing filter maximum-minimum filter mixed filter fibre tracking noise elimination method
分类号:
R312;TP391.4
DOI:
DOI:10.3969/j.issn.1005-202X.2018.10.007
文献标志码:
A
摘要:
 对弥散张量成像(DTI)中影响纤维束跟踪效果的几种噪声去除方法进行研究。仿真结果表明:高斯平滑滤波、中值滤波和形态学最大最小值滤波对DTI中的噪声都有一定的抑制作用。高斯平滑滤波能够去除高频白噪声,引起图像边缘模糊,影响纤维束跟踪的连续性;中值滤波在去除随机噪声的同时,较好地保存了图像细节,能提高纤维束跟踪效果;最大最小值滤波能抑制较大噪声的影响,提高纤维束跟踪的连续性。此外,提出一种联合运用最大最小值滤波和中值滤波的混合滤波去噪法,该方法能更好地抑制噪声对DTI纤维束跟踪的影响,获得了令人满意的跟踪效果。
Abstract:
 Abstract: Several noise elimination approaches for fibre tracking in diffusion tensor imaging (DTI) are analyzed. The simulation results indicate that Gaussian smoothing filter, median filter, and maximum-minimum filter are able to eliminate the noise in DTI image. Gaussian smoothing filter eliminates high-frequency white noise, but causes fuzzy edges of images and affects the connectivity of DTI fibre tracking. Median filter not only eliminates random noise, but also remains valuable information, which improves the effect of DTI fibre tracking. Maximum-minimum filter inhibits the effects of significant noise and improves the connectivity of DTI fibre tracking. Herein a mixed filtering method by integrating maximum-minimum filter with median filter is proposed for image denoising. The proposed method is proved to be able to effectively reduce the effects of noise on DTI fibre tracking, achieving better DTI fibre tracking results.

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备注/Memo

备注/Memo:
 【收稿日期】2018-06-20
【基金项目】山东省自然科学基金(ZR2018MH033, ZR2014HM072, ZR2015HL095);泰山医学院国家级大学生创新创业训练计划项目(201710439076)
【作者简介】潘运达,研究方向:弥散张量成像纤维束跟踪算法,E-mail: 1016601424@qq.com
【通信作者】张光玉,研究方向:数字医学影像处理和脑功能成像,E-mail: gyuzhn@163.com
更新日期/Last Update: 2018-10-22