Paper Abstract and Keywords |
Presentation |
2009-01-21 11:15
Automatic Myocardial Segmentation of the Left Ventricle in Cardiac CT Dataset Minjin Lee, Helen Hong (Seoul Women's Univ.) MI2008-164 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
To assess the cardiac left ventricular function in multi-slice CT, we propose an automatic, robust and fast segmentation technique that uses the adaptive gradient profiles to delineate myocardial boundaries. Our method is composed of two main steps. First, endocardial contours are extracted by using adaptive thresholding and region growing. To involve
papillary muscles inside the contours, the endocardial contours are refined by using ray-casting. Second, epicardial contours which have both a myocardial threshold value and a maximum gradient are chosen. Then, curvature-based contour fitting is performed to overcome problems associated with heterogeneity of the myocardium intensity and lack of clear delineation between the myocardium and adjacent anatomic structures. Our method has been applied to seven dynamic CT data sets. For accuracy measure, the endo and epicardial contours are evaluated with the manually segmented contours. As the experimental results, the average distance difference error was 0.56mm and the overlapping region ratio was 82%. The proposed method was finished within 1 sec. on average. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Cardiac Segmentation / Left Ventricle / Computed Tomography / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 108, no. 385, MI2008-164, pp. 473-474, Jan. 2009. |
Paper # |
MI2008-164 |
Date of Issue |
2009-01-12 (MI) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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MI2008-164 |
Conference Information |
Committee |
MI |
Conference Date |
2009-01-19 - 2009-01-21 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
National Taiwan University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Medical Imaging |
Paper Information |
Registration To |
MI |
Conference Code |
2009-01-MI |
Language |
English |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Automatic Myocardial Segmentation of the Left Ventricle in Cardiac CT Dataset |
Sub Title (in English) |
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Cardiac Segmentation |
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Left Ventricle |
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Computed Tomography |
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1st Author's Name |
Minjin Lee |
1st Author's Affiliation |
Seoul Womens University (Seoul Women's Univ.) |
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Helen Hong |
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Seoul Womens University (Seoul Women's Univ.) |
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Speaker |
Author-1 |
Date Time |
2009-01-21 11:15:00 |
Presentation Time |
10 minutes |
Registration for |
MI |
Paper # |
MI2008-164 |
Volume (vol) |
vol.108 |
Number (no) |
no.385 |
Page |
pp.473-474 |
#Pages |
2 |
Date of Issue |
2009-01-12 (MI) |
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