Title :
A 3-D display method of atrial ECG-mapping based on CT images
Author :
Zhan, Qingbo ; Chen, Ying ; Shao, Yi ; Yang, Cuiwei ; Wu, Zhong
Author_Institution :
Sch. of Electron. Sci. & Eng., Nanjing Univ., Nanjing, China
Abstract :
In order to have an intuitive grasp of atrial fibrillation model using ECG mapping technique, we started from animals´ CT images, extracted contours of torso surface and epicardium with Snake model, reconstructed three-dimensional models of torso surface and epicardium with triangular patches. Using interpolation based on Delaunay triangulation, signals (acquired from animal experiments) of normal sinus rhythm (NSR) and atrial fibrillation (AF) were displayed in 3D perspective. And the important process in cardiac electrical activity, such as the start and ending parts of spontaneous AF, could be clearly observed.
Keywords :
bioelectric phenomena; computerised tomography; edge detection; electrocardiography; feature extraction; image reconstruction; medical disorders; medical image processing; mesh generation; physiological models; 3-D display method; CT; Delaunay triangulation; ECG; atrial fibrillation; cardiac electrical activity; contour extraction; epicardium; image reconstruction; interpolation; normal sinus rhythm; three-dimensional models; torso surface; triangular patches; Computed tomography; Image reconstruction; Solid modeling; Surface reconstruction; Surface treatment; Three dimensional displays; Torso; 3D Display; Atrial Fibrillation; CT Images; GVF Snake Model; Reconstruction of Epicardium;
Conference_Titel :
Biomedical Engineering and Informatics (BMEI), 2010 3rd International Conference on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6495-1
DOI :
10.1109/BMEI.2010.5639496
