Cart (Loading....) | Create Account
Close category search window
 

A study on truncated cone-beam sampling strategies for 3D mammography

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

5 Author(s)
Junhai Wen ; Dept. of Radiol., State Univ. of New York, Stony Brook, NY, USA ; Hongbing Lu ; Wei Zhao ; Zigang Wang
more authors

In USA, breast cancer is a most frequent cause of deaths for women. It is important to detect the cancer in its early stage. X-ray three-dimensional (3D) mammography can provide a good image resolution and contrast However, the associated radiation is relatively high. Reduction of the soft X-ray radiation for 3D mammography has been a research focus in the past years. In a typical 3D mammography system, the X-ray source and detector rotate around the object (breast) beneath the table, on which the patient lies in a prone position. In order to sample the data as close as possible to the chest base, a circular orbit with half cone-beam geometry has been investigated. It can provide very good reconstruction if the X-ray source is far away from the object. For a relatively short distance between the source and the object for an improved spatial resolution, the circular orbit may not be an optimal choice. In this case, the portion far away from the circular orbit wouldn't be well reconstructed because of the missing of projection data in that region. In this work, we investigated five possible orbits, attempting to find an optimal orbit that can reconstruct satisfactorily the whole object with least projections (less radiation). The results showed that two near half-circular orbits may be a choice, one near the chest base and the other near the breast tip. The redundant samplings beyond 180° were eliminated by our algorithm, rendering very good reconstructions.

Published in:

Nuclear Science Symposium Conference Record, 2003 IEEE  (Volume:5 )

Date of Conference:

19-25 Oct. 2003

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.