By Topic

Automatic regions of interest in factor analysis for dynamic medical imaging

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
$31 $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

2 Author(s)
Smidl, V. ; Inst. of Inf. Theor. & Autom., Prague, Czech Republic ; Tichy, O.

Factor Analysis (FA) is a well established method for factors separation in analysis of dynamic medical imaging. However, its assumptions are valid only in limited regions of interest (ROI) in the images which must be selected manually or using heuristics. The resulting quality of separation is sensitive to the choice of these ROI. We propose a new probabilistic model for functional analysis with inherent estimation of probabilistic ROI. The model is solved using the Variational Bayes method which provides also automatic relevance determination of the estimated factors. Performance of the method is demonstrated on data from renal scintigraphy, where a significant improvement is achieved. Since there are no scintigraphy-related assumptions, the method can be used in any other imaging modality.

Published in:

Biomedical Imaging (ISBI), 2012 9th IEEE International Symposium on

Date of Conference:

2-5 May 2012