Document Detail


Determination of accurate stent graft configuration in abdominal aortic aneurysm using computed tomography: a preliminary study.
MedLine Citation:
PMID:  20630337     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
An aortic stent graft is frequently used to cure an abdominal aortic aneurysm (AAA). It is critical to accurately fit the size and shape of the stent graft to the target region on the aorta. Proper sizing and shaping require the measurement of the orthogonal diameter of the target region from medical images. The present study aimed to acquire an accurate three-dimensional (3D) reconstruction of the aorta to determine the shape of the cross-sectional area where the stent graft would be implanted. A conventional geometric-active contour model was enhanced to prevent blurring and to improve edge detection with high noise resistivity. After the segmentation of two-dimensional (2D) images using the model, a 3D-reconstructed configuration of the aorta was achieved using a surface-rendering technique. The model could segment several selected synthetic images more accurately than conventional methods. Also, a 3D-reconstructed configuration of the abdominal aorta could be achieved using boundary coordinates extracted from 2D image segmentation. This preliminary study indicates the utility of the approach in optimizing stent graft configuration for AAA patients, thus enhancing stent graft healing.
Authors:
Ho Chul Kim; Sang Woo Park; Kyoung Won Nam; Hyuk Choi; Eun Jeong Choi; Seungoh Jin; Min Gi Kim; Kyung Sun
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Clinical imaging     Volume:  34     ISSN:  1873-4499     ISO Abbreviation:  Clin Imaging     Publication Date:    2010 Jul-Aug
Date Detail:
Created Date:  2010-07-15     Completed Date:  2010-11-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8911831     Medline TA:  Clin Imaging     Country:  United States    
Other Details:
Languages:  eng     Pagination:  255-62     Citation Subset:  IM    
Copyright Information:
Copyright 2010 Elsevier Inc. All rights reserved.
Affiliation:
Department of Biomedical Engineering, Brain Korea 21 Project for Biomedical Science, College of Medicine, Korea University, Seoul, Republic of Korea.
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MeSH Terms
Descriptor/Qualifier:
Aortic Aneurysm, Abdominal / radiography*,  surgery*
Blood Vessel Prosthesis
Humans
Image Processing, Computer-Assisted / methods*
Imaging, Three-Dimensional
Stents
Tomography, X-Ray Computed

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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