TY  - CHAP
ID  - eprints2235
TI  - Morphological analysis of the left ventricular endocardial surface and its clinical implications
AV  - none
N2  - The complex morphological structure of the left ventricular endocardial surface and its relation to the severity of arterial stenosis has not yet been thoroughly investigated due to the limitations of conventional imaging techniques. By exploiting the recent developments in Multirow-Detector Computed Tomography (MDCT) scanner technology, the complex endocardial surface morphology of the left ventricle is studied and the cardiac segments affected by coronary arterial stenosis localized via analysis of Computed Tomography (CT) image data obtained from a 320-MDCT scanner. The non-rigid endocardial surface data is analyzed using an isometry-invariant Bag-of-Words (BOW) feature-based approach. The clinical significance of the analysis in identifying, localizing and quantifying the incidence and extent of coronary artery disease is investigated. Specifically, the association between the incidence and extent of coronary artery disease and the alterations in the endocardial surface morphology is studied. The results of the proposed approach on 15 normal data sets, and 12 abnormal data sets exhibiting coronary artery disease with varying levels of severity are presented. Based on the characterization of the endocardial surface morphology using the Bag-of-Words features, a neural network-based classifier is implemented to test the effectiveness of the proposed morphological analysis approach. Experiments performed on a strict leave-one-out basis are shown to exhibit a distinct pattern in terms of classification accuracy within the cardiac segments where the incidence of coronary arterial stenosis is localized.
KW  - Ventricular endocardial surface; cardiovascular CT; non-rigid shape analysis; Bag-of-Words
UR  - http://dx.doi.org/10.1007/978-3-642-33418-4_62
SN  - 978-3-642-33418-4
EP  - 510
PB  - Springer
T2  - Medical Image Computing and Computer-Assisted Intervention ? MICCAI 2012
A1  - Mukhopadhyay, Anirban
A1  - Qian, Zhen
A1  - Bhandarkar, Suchendra M.
A1  - Liu, Tianming
A1  - Rinehart, Sarah
A1  - Voros, Szilard
T3  - Lecture Notes in Computer Science
Y1  - 2012///
SP  - 502
ER  -