Separation and visualization of arteries and heart in 3D computed tomography angiography images

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• 作者：Shouren Lan 兰守忍 ; Chaoyi Cui 崔超毅 ; Xin Liu 刘鑫…
• 关键词：Key wordsocclusion removal ; multi ; atlas ; interactive extraction ; set operations ; volume rendering
• 刊名：Journal of Shanghai Jiaotong University (Science)
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：22
• 期：1
• 页码：1-9
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Electrical Engineering; Materials Science, general; Computer Science, general; Architecture, general; Life Sciences, general;
• 出版者：Shanghai Jiaotong University Press
• ISSN：1995-8188
• 卷排序：22

文摘

The visualization of arteries and heart usually plays a crucial role in the clinical diagnosis, but researchers face the problems of region selection and mutual occlusion in clinical visualization. Therefore, the arteries and the heart cannot be easily visualized by current visualization methods. To solve the problems, we propose a new framework for arteries and cardiac visualization by combining a priori knowledge and the set operations. Firstly, a suitable region can be easily determined in the transfer function space with a priori knowledge and the visual feedback results. Secondly, the arteries and the heart can be directly extracted by the marked seed point. Finally, the arteries and the heart are separated for solving mutual occlusion through the set operations. This framework can easily solve the mutual occlusion problem in clinical visualization and greatly improve the region selection method in the transfer function space. Its effectiveness has been demonstrated on the basis of many experimental results.