A patient-specific scatter artifacts correction method

Wei Zhao; Stephen Brunner; Kai Niu; Sebastian Schafer; Kevin Royalty; Guang-Hong Chen

doi:10.1117/12.2043923

19 March 2014 A patient-specific scatter artifacts correction method

Wei Zhao; Stephen Brunner; Kai Niu; Sebastian Schafer; Kevin Royalty; Guang-Hong Chen

Author Affiliations +

Proceedings Volume 9033, Medical Imaging 2014: Physics of Medical Imaging; 903310 (2014) https://doi.org/10.1117/12.2043923
Event: SPIE Medical Imaging, 2014, San Diego, California, United States

Abstract

This paper provides a fast and patient-specific scatter artifact correction method for cone-beam computed tomography (CBCT) used in image-guided interventional procedures. Due to increased irradiated volume of interest in CBCT imaging, scatter radiation has increased dramatically compared to 2D imaging, leading to a degradation of image quality. In this study, we propose a scatter artifact correction strategy using an analytical convolution-based model whose free parameters are estimated using a rough estimation of scatter profiles from the acquired cone-beam projections. It was evaluated using Monte Carlo simulations with both monochromatic and polychromatic X-ray sources. The results demonstrated that the proposed method significantly reduced the scatter-induced shading artifacts and recovered CT numbers.

Citation Download Citation

Wei Zhao, Wei Zhao, Stephen Brunner, Stephen Brunner, Kai Niu, Kai Niu, Sebastian Schafer, Sebastian Schafer, Kevin Royalty, Kevin Royalty, Guang-Hong Chen, Guang-Hong Chen, } "A patient-specific scatter artifacts correction method", Proc. SPIE 9033, Medical Imaging 2014: Physics of Medical Imaging, 903310 (19 March 2014); doi: 10.1117/12.2043923; https://doi.org/10.1117/12.2043923

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

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

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years