Reduction of beam hardening artifacts in cone-beam CT imaging via SMART-RECON algorithm

Yinsheng Li; John Garrett; Guang-Hong Chen

doi:10.1117/12.2216882

22 March 2016 Reduction of beam hardening artifacts in cone-beam CT imaging via SMART-RECON algorithm

Yinsheng Li, John Garrett, Guang-Hong Chen

Proceedings Volume 9783, Medical Imaging 2016: Physics of Medical Imaging; 97830W (2016) https://doi.org/10.1117/12.2216882
Event: SPIE Medical Imaging, 2016, San Diego, California, United States

Abstract

When an automatic exposure control is introduced in C-arm cone beam CT data acquisition, the spectral inconsistencies between acquired projection data are exacerbated. As a result, conventional water/bone correction schemes are not as effective as in conventional diagnostic x-ray CT acquisitions with a fixed tube potential. In this paper, a new method was proposed to reconstruct several images with different degrees of spectral consistency and thus different levels of beam hardening artifacts. The new method relies neither on prior knowledge of the x-ray beam spectrum nor on prior compositional information of the imaging object. Numerical simulations were used to validate the algorithm.

Citation Download Citation

Yinsheng Li, John Garrett, and Guang-Hong Chen "Reduction of beam hardening artifacts in cone-beam CT imaging via SMART-RECON algorithm", Proc. SPIE 9783, Medical Imaging 2016: Physics of Medical Imaging, 97830W (22 March 2016); https://doi.org/10.1117/12.2216882

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available