Segmentation and optical flow estimation in cardiac CT sequences based on a spatiotemporal PDM with a correction scheme and the Hermite transform

Computers in Biology and Medicine
Leiner Barba-JEnrique Vallejo Venegas

Abstract

The left ventricle and the myocardium are two of the most important parts of the heart used for cardiac evaluation. In this work a novel framework that combines two methods to isolate and display functional characteristics of the heart using sequences of cardiac computed tomography (CT) is proposed. A shape extraction method, which includes a new segmentation correction scheme, is performed jointly with a motion estimation approach. For the segmentation task we built a Spatiotemporal Point Distribution Model (STPDM) that encodes spatial and temporal variability of the heart structures. Intensity and gradient information guide the STPDM. We present a novel method to correct segmentation errors obtained with the STPDM. It consists of a deformable scheme that combines three types of image features: local histograms, gradients and binary patterns. A bio-inspired image representation model based on the Hermite transform is used for motion estimation. The segmentation allows isolating the structure of interest while the motion estimation can be used to characterize the movement of the complete heart muscle. The work is evaluated with several sequences of cardiac CT. The left ventricle was used for evaluation. Several metrics were use...Continue Reading

References

Feb 5, 2003·IEEE Transactions on Medical Imaging·Steven C MitchellMilan Sonka
May 23, 2003·IEEE Transactions on Medical Imaging·Christos DavatzikosDinggang Shen
Dec 8, 2004·Medical Image Analysis·Johan Montagnat, Hervé Delingette
Jan 28, 2006·Medical Image Analysis·Hans C van AssenBoudewijn P F Lelieveldt
Mar 28, 2006·Seminars in Ultrasound, CT, and MR·Matthew J Budoff, Khawar Gul
May 5, 2006·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·José L Silvan-Cárdenas, Boris Escalante-Ramírez
Apr 13, 2007·IEEE Transactions on Medical Imaging·Delphine NainAllen Tannenbaum
Nov 21, 2007·Radiographics : a Review Publication of the Radiological Society of North America, Inc·James P O'BrienJill E Jacobs
Aug 30, 2008·IEEE Transactions on Medical Imaging·Olivier EcabertJürgen Weese
Jun 16, 2009·Medical Image Analysis·Tobias Heimann, Hans-Peter Meinzer
Jul 6, 2010·Medical Image Analysis·Joël SchaererPatrick Clarysse
Sep 5, 2012·Nature Reviews. Cardiology·Yiu-fai Cheung
Jan 10, 2013·Medical Physics·Mohammad DawoodKlaus P Schafers

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