TY  - CONF
AU  - Jaume Garcia
AU  - Albert Andaluz
AU  - Debora Gil
AU  - Francesc Carreras
A2  - IEEE EMB
A2  - EMBC
PY  - 2010//
TI  - Decoupled External Forces in a Predictor-Corrector Segmentation Scheme for LV Contours in Tagged MR Images
BT  - 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society
SP  - 4805
EP  - 4808
N2  - Computation of functional regional scores requires proper identification of LV contours. On one hand, manual segmentation is robust, but it is time consuming and requires high expertise. On the other hand, the tag pattern in TMR sequences is a problem for automatic segmentation of LV boundaries. We propose a segmentation method based on a predictorcorrector (Active Contours – Shape Models) scheme. Special stress is put in the definition of the AC external forces. First, we introduce a semantic description of the LV that discriminates myocardial tissue by using texture and motion descriptors. Second, in order to ensure convergence regardless of the initial contour, the external energy is decoupled according to the orientation of the edges in the image potential. We have validated the model in terms of error in segmented contours and accuracy of regional clinical scores.
SN  - 1557-170X
SN  - 978-1-4244-4123-5
UR  - http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5628029
L1  - http://refbase.cvc.uab.es/files/GAG2010.pdf
UR  - http://dx.doi.org/10.1109/IEMBS.2010.5628029
N1  - IAM
ID  - Jaume Garcia2010
ER  -