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Quantitative analysis and visualization of the endocardial and epicardial walls using gated SPECT images

Title
Quantitative analysis and visualization of the endocardial and epicardial walls using gated SPECT images
Authors
Choi S.-M.Lee Y.-K.Kim M.-H.
Ewha Authors
김명희
Issue Date
2001
Journal Title
Proceedings of SPIE - The International Society for Optical Engineering
ISSN
0277-786XJCR Link
Citation
Proceedings of SPIE - The International Society for Optical Engineering vol. 4321, pp. 427 - 435
Indexed
SCOPUS scopus
Document Type
Conference Paper
Abstract
Accurate estimation of ventricular volume and motion is very important for cardiac diagnosis and treatment planning. Physicians typically calculate ventricular volume by using a few slice images and simplified equations. Such methods are generally limited by assumptions about ventricular shape particularly when the ventricle is distorted by ischemia or infarction. They also estimate ventricular motion by sequentially examining slice and phase images. However, it doesn't always give the same results. In this paper, we present an efficient double time-varying deformable model to estimate left ventricular volume and mass more accurately and to analyze endocardial and epicardial wall motions separately. At each time step, the model first finds global rigid motions and then tracks local non-rigid motions based on 3-D point sets extracted from the surface of myocardium, which are classified into endocardial or epicardial walls. The reconstructed endocardial and epicardial walls are visualized at the same time or separately and their motions are quantitatively analyzed. Results of application to gated SPECT images are given. Using the presented model, physicians can estimate the volume change over the cardiac cycle more easily and accurately, and evaluate ventricular motions reproducibly and objectively.
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DOI
10.1117/12.428168
Appears in Collections:
의과대학 > 의학과 > Journal papers
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