Share Email Print
cover

Proceedings Paper

Tomosynthesis with source positions distributed over a surface
Author(s): Dan Xia; Seungryong Cho; Junguo Bian; Emil Y. Sidky; Charles A. Pelizzari; Xiaochuan Pan
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

In classical tomosynthesis, the x-ray source generally is moved along a curve segment, such as a circular trajectory, within a plane that is perpendicular to the detector plane. Studies suggest that when the angular coverage and number of projection views are limited, it can be difficult to reconstruct accurate images within planes perpendicular to the detector plane in classical tomosynthesis. In this work, we investigate imaging strategies in tomosynthesis using trajectories that are not confined within a plane perpendicular to the detector plane. We expect that such trajectories can increase data information and thus lead reconstructed images with improved quality. Numerical studies were conducted for evaluating the image-reconstruction quality in classical tomosynthesis and tomosynthesis with trajectories that are not confined within a plane perpendicular to the detector plane. The results of the studies indicated that, with the same number of views, (or equivalenntly, the same amount of image radiation), data acquired in tomosynthesis with the trajectories that are not confined within a plane perpendicluar to the detector plane generally contain more information than that acquired with classical tomosynthesis and can thus yield images with improved quality.

Paper Details

Date Published: 25 March 2008
PDF: 7 pages
Proc. SPIE 6913, Medical Imaging 2008: Physics of Medical Imaging, 69132A (25 March 2008); doi: 10.1117/12.772687
Show Author Affiliations
Dan Xia, The Univ. of Chicago (United States)
Seungryong Cho, The Univ. of Chicago (United States)
Junguo Bian, The Univ. of Chicago (United States)
Emil Y. Sidky, The Univ. of Chicago (United States)
Charles A. Pelizzari, The Univ. of Chicago (United States)
Xiaochuan Pan, The Univ. of Chicago (United States)


Published in SPIE Proceedings Vol. 6913:
Medical Imaging 2008: Physics of Medical Imaging
Jiang Hsieh; Ehsan Samei, Editor(s)

© SPIE. Terms of Use
Back to Top