DocumentCode :
636484
Title :
Global optimization of optimal angiographic viewing angles for coronary arteries with multiple segments
Author :
Xuehu Wang ; Jian Yang ; Tao Yang ; Yongtian Wang
Author_Institution :
Key Lab. of Photoelectronic Imaging Technol. & Syst., Beijing Inst. of Technol., Beijing, China
fYear :
2013
fDate :
3-7 July 2013
Firstpage :
2640
Lastpage :
2643
Abstract :
For angiographic images, different imaging angles may lead to different degrees of foreshortening and overlap, which hence considerably interferes with the angiogram based diagnosis of vascular diseases. In this study, a composite optimization method is proposed to determine the optimal viewing angle of angiograms, which can fully considerate stenosis and the interference caused due to multiple vascular segments. In order to obtain the optimal angle for segments at multiple branches´ intersection, a hyper plane optimization method is proposed to separate the relative branches. The optimal angle for stenosis is designed by minimizing area of the projections of the vascular segments. The multiple segments and the stenosis optimization are integrated with the foreshortening and overlap, which can hence give a more objective viewing angle of the coronary arteries from angiographic images. Experimental results demonstrate that the proposed method is very effective and robust for optimizing the projection angle.
Keywords :
angiocardiography; blood vessels; diagnostic radiography; diseases; medical image processing; optimisation; angiogram based diagnosis; angiographic image; composite optimization method; coronary artery; global optimization; hyper plane optimization method; image foreshortening; image overlap; imaging angle; interference; multiple branch intersection; multiple vascular segment; objective viewing angle; optimal angiographic viewing angle; optimal stenosis angle; projections area minimization; relative branch separation; stenosis optimization; vascular disease; Angiography; Arteries; Diseases; Image segmentation; Optimization; Vectors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2013 35th Annual International Conference of the IEEE
Conference_Location :
Osaka
ISSN :
1557-170X
Type :
conf
DOI :
10.1109/EMBC.2013.6610082
Filename :
6610082
Link To Document :
بازگشت