基于血管内超声图像时空相关性的血流斑点去噪方法附视频

被引:2
作者
董海艳
王惠南
陶玲
机构
[1] 南京航空航天大学自动化学院
关键词
血管内超声; 血流斑点噪声; 时空相关性; 斑点去噪;
D O I
暂无
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
血管内超声成像的优越成像方式使得它越来越广泛地被应用到冠心病的诊断和介入治疗中。但随着超声频率的提高,血流分子回波信号(即血流斑点噪声)也显著增强,这会降低管腔和管壁的对比度,加大医生辨别、测量管腔和斑块几何参数及物理参数的难度。我们提出了一种新颖的去噪方法,它利用血管内超声图像在时间、空间上的相关信息,即组织在时间、空间上的变化比血流小这一事实。实验结果表明该方法能显著地去除斑点噪声,增强管腔和管壁的对比度,更好地帮助医生区别血管壁和周围组织。
引用
收藏
页码:1213 / 1217
页数:5
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