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| 一种基于磁敏感加权成像技术的三维脑静脉提取方法 | |
| 作者姓名： | Suo S Dou F Wang C Xu J Huang X Qian L Xu X |
| 作者单位： | 1. 上海文通大学医学院生物医学工程系,上海,200025 2. 上海交通大学医学院附属仁济医院,上海,200127 3. 上海文通大学物理系,上海,200240 |
| 基金项目： | 上海交通大学医工交叉研究基金项目 |
| 摘 要： | 综合考虑静脉的局部灰度特征、全局灰度特征以及管状信息三方面特征的基础上,提出了一种基于血管增强扩散滤波的自适应阈值生长法。该方法先采用血管增强扩散滤波器增强静脉的连续性,从而提高了细微静脉的检出率,并且降低了团块状的顺磁性伪影的干扰：然后采用改进的自适应阈值分割法提取脑部静脉。结果表明．该分割算法较好地解决了团块状的顺磁性伪影干扰的问题．也有利于在脑部SWI图像中提取细小的静脉结构。 |
| 关 键 词： | 磁敏感加权成像 静脉提取 自适应阈值分割法 血管增强扩散 |
A technique for the vein extraction from the susceptibility weighted imaging of the brain |
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| Suo S,Dou F,Wang C,Xu J,Huang X,Qian L,Xu X.A technique for the vein extraction from the susceptibility weighted imaging of the brain[J].Chinese Journal of Medical Instrumentation,2011,35(2):87-90, 93. | |
| Authors: | Suo Shi Dou Feifei Wang Cheng Xu Jianrong Huang Xin Qian Lijun Xu Xiu |
| Institution: | Suo Shi1,Dou Feifei1,Wang Cheng1,Xu Jianrong2,Huang Xin3,Qian Lijun2,Xu Xiu1 1 Department of Biomedical Engineering,School of Medicine,Shanghai Jiao Tong University,Shanghai,200025 2 Renji Hospital Affiliated to Medical School of Shanghai Jiao Tong University,200127 3 Department of Physics,200240 |
| Abstract: | This paper studies the vein extraction technique based on the susceptibility weighted imaging(SWI) and introduced an improved self-adaptive threshold method based on the vessel enhancing diffusion.The approach employs the combination indicator of the local gray character,the global gray character and the tubular information of the vein.It first applies the vessel enhancing diffusion filter to enhance the continuity of the vein,increases the detection rate of tiny vein and suppresses the nucleus areas.And th... |
| Keywords: | susceptibility weighted imaging vein segmentation self-adaptive threshold method vessel enhancing diffusion(VED) |
| 本文献已被 CNKI 维普 万方数据 PubMed 等数据库收录！ | |