北京生物医学工程2011，Vol.30Issue(6)：582-587,6.DOI:10.3969/j.issn.1002-3208.2011.06.07
基于快速推进法的血管内超声图像序列的三维分割
Three Dimensional Segmentation of Intravascular Ultrasound Image Sequence Based on Fast Marching
杨宇1
作者信息
- 1. 解放军理工大学理学院,南京,211101
- 折叠
摘要
Abstract
Objective Intravascular ultrasound (IV US) is used in clinical diagnosis of vascular disease as a new technology in recent years. The detection of vascular wall from IV US image to get the intima contour and the media - adventitia contour of vessel wall is an important step in quantitative analysis and three -dimensional reconstruction of IVUS image sequence. Methods We proposed a three dimensional parallel segmentation of IVUS image sequence based on fast marching method. After the pretreatments of original images, such as filtering, smoothing and suppression of ring - down artifacts, IVUS longitudinal cut was obtained and its detected vessel wall contours were mapped into each cross - sectional slice to obtain initial vessel wall contours in each IVUS frame. Finally, with the fast marching algorithm, initial contours deformed until stopping at the actual contours. Results The data of the experiment on clinical IV US image showed that this method greatly improved the efficiency and overcame the shortcomings of the traditional serial processing methods, compared with the serial segmentation on frame processing. Conclusions This proposed method is of importance in clinical diagnosis and interventional treatment of coronary artery diseases.关键词
血管内超声/图像分割/快速推进/导管伪影Key words
intravascular ultrasound/ image segmentation/ fast marching/ ring-down artifacts分类
医药卫生引用本文复制引用
杨宇..基于快速推进法的血管内超声图像序列的三维分割[J].北京生物医学工程,2011,30(6):582-587,6.
