TY - GEN
T1 - Segmentation of the left ventricle from cardiac MR images based on radial GVF snake
AU - Liang, Jia
AU - Ding, Gangyi
AU - Wu, Yuwei
PY - 2008
Y1 - 2008
N2 - Segmentation of the left ventricle (LV) is a hot topic in cardiac magnetic resonance (MR) images analysis and still remains challenging. In this paper, we propose a novel method, radial gradient vector flow (GVF) snake, to segment LV automatically. Left ventricle centroid and region of interest (ROI) are located using temporal intensity difference along with Hough transform. Taking the centroid as an origin, the ROI could be transformed into polar coordinates where myocardium looks more like a horizontal band rather than a circle. This shape characteristic enables snake to evolve towards ID radial direction instead of 2D image plane, which simplifies snake energy functions to ID. A line-like shape constraint is adopted to conquer papillary muscle and weak boundaries. After endocardium extraction, GVF external force modified skillfully reactivates snake forward to epicardial contour successively. Several experiments are presented to demonstrate the effectiveness and robustness of the proposed method.
AB - Segmentation of the left ventricle (LV) is a hot topic in cardiac magnetic resonance (MR) images analysis and still remains challenging. In this paper, we propose a novel method, radial gradient vector flow (GVF) snake, to segment LV automatically. Left ventricle centroid and region of interest (ROI) are located using temporal intensity difference along with Hough transform. Taking the centroid as an origin, the ROI could be transformed into polar coordinates where myocardium looks more like a horizontal band rather than a circle. This shape characteristic enables snake to evolve towards ID radial direction instead of 2D image plane, which simplifies snake energy functions to ID. A line-like shape constraint is adopted to conquer papillary muscle and weak boundaries. After endocardium extraction, GVF external force modified skillfully reactivates snake forward to epicardial contour successively. Several experiments are presented to demonstrate the effectiveness and robustness of the proposed method.
UR - http://www.scopus.com/inward/record.url?scp=51649116052&partnerID=8YFLogxK
U2 - 10.1109/BMEI.2008.188
DO - 10.1109/BMEI.2008.188
M3 - Conference contribution
AN - SCOPUS:51649116052
SN - 9780769531182
T3 - BioMedical Engineering and Informatics: New Development and the Future - Proceedings of the 1st International Conference on BioMedical Engineering and Informatics, BMEI 2008
SP - 238
EP - 242
BT - BioMedical Engineering and Informatics
T2 - BioMedical Engineering and Informatics: New Development and the Future - 1st International Conference on BioMedical Engineering and Informatics, BMEI 2008
Y2 - 27 May 2008 through 30 May 2008
ER -