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Contour detection of short axis slice MR images for contraction irregularity assessment

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6 Author(s)
Muller, A. ; Internal Medicine I, Univ. Hosp. Ulm ; Neitmann, A. ; Merkle, N. ; Wohrle, J.
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A new method for automatically detecting left ventricular endocardial borders in cardiac MRI short-axis slices was applied to a previously published patient group for which manually drawn contours already existed. An initial point lying in the left ventricular endocardium was found by a size invariant circular Hough transform. A coarse segmentation of the endocardial region was completed by merging surrounding regions and building the convex hull. Adjacent time frames were used to remove jitter from the contour movements. A feature (IRM), extracted from those contours, quantified the irregularities of left ventricular contractions. Patients with dilated cardiomyopathy were separated from the control group by thresholding the IRM parameter

Published in:

Computers in Cardiology, 2005

Date of Conference:

25-28 Sept. 2005

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