NDLI: Segmentation of the Left Ventricle from Cardiac MR Images Based on Radial GVF Snake

Content Provider	IEEE Xplore Digital Library
Author	Jia Liang Gangyi Ding Yuwei Wu
Copyright Year	2008
Description	Author affiliation: Sch. of Comput. Sci. & Technol., Beijing Inst. of Technol., Beijing (Jia Liang; Gangyi Ding; Yuwei Wu)
Abstract	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 `D radial direction instead of 2D image plane, which simplifies snake energy functions to 1D. 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.
Starting Page	238
Ending Page	242
File Size	701098
Page Count	5
File Format	PDF
ISBN	9780769531182
DOI	10.1109/BMEI.2008.188
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-27
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	GVF snake Shape Laboratories left ventricle Magnetic resonance Biomedical informatics Muscles Image sequences Blood Image segmentation Myocardium segmentation Biomedical engineering
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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