By Topic

Assessment of left atrial function using multi-slice CT images

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
W. C. Hu ; Chung Yuan University, Chung Li, Taiwan, ROC ; M. H. Wu ; H. M. Tsao ; C. C. Lin
more authors

The function of left atrium can be accurately estimated non-invasively using 4D CT cardiac images. A self-developed image analysis program will first reconstruct 3D volume of heart. Then, one may re-sample images for accurately deleting the 4 pulmonary veins from the atrium and set the boundary. With the prior processed information, the active contour methodology and seed regional growth methodology were implemented to delineate the atrial contour. With a calibration standard of 500 ml saline with contrast medium in bag, both methods were able to estimate volume within 5% of error. Thirty sets of patientpsilas CT cardiac images that were acquired at 30% and 90% of RR interval. The dimension of pulmonary veins and the left atrial volume was evaluated. The contractility of pulmonary vein and the ejection fraction (EF) of atrium was calculated. The result shows that the left atrium with a larger volume will have a poor ejection fraction.

Published in:

2007 Computers in Cardiology

Date of Conference:

Sept. 30 2007-Oct. 3 2007