Tracking Lung Tumors in Orthogonal X-Rays
Joint Authors
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-08-06
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
This paper presents a computationally very efficient, robust, automatic tracking method that does not require any implanted fiducials for low-contrast tumors.
First, it generates a set of motion hypotheses and computes corresponding feature vectors in local windows within orthogonal-axis X-ray images.
Then, it fits a regression model that maps features to 3D tumor motions by minimizing geodesic distances on motion manifold.
These hypotheses can be jointly generated in 3D to learn a single 3D regression model or in 2D through back projection to learn two 2D models separately.
Tumor is tracked by applying regression to the consecutive image pairs while selecting optimal window size at every time.
Evaluations are performed on orthogonal X-ray videos of 10 patients.
Comparative experimental results demonstrate superior accuracy (~1 pixel average error) and robustness to varying imaging artifacts and noise at the same time.
American Psychological Association (APA)
Li, Feng& Porikli, Fatih. 2013. Tracking Lung Tumors in Orthogonal X-Rays. Computational and Mathematical Methods in Medicine،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-488222
Modern Language Association (MLA)
Li, Feng& Porikli, Fatih. Tracking Lung Tumors in Orthogonal X-Rays. Computational and Mathematical Methods in Medicine No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-488222
American Medical Association (AMA)
Li, Feng& Porikli, Fatih. Tracking Lung Tumors in Orthogonal X-Rays. Computational and Mathematical Methods in Medicine. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-488222
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-488222