Model-based inter- and intra-panel inconsistency correction for photon counting detector CT

Mang Feng; Xu Ji; Ran Zhang; Ke Li

doi:10.1117/12.2580817

15 February 2021 Model-based inter- and intra-panel inconsistency correction for photon counting detector CT

Mang Feng, Xu Ji, Ran Zhang, Ke Li

Author Affiliations +

Proceedings Volume 11595, Medical Imaging 2021: Physics of Medical Imaging; 115951V (2021) https://doi.org/10.1117/12.2580817
Event: SPIE Medical Imaging, 2021, Online Only

Abstract

Due to the subtle variations of energy response functions across photoconductive panels, photon counting detector CT are subject to severe banding artifacts. This work presents a physics based method to correct for these artifacts. It employs calibration objects with known thicknesses and composition to estimate the panel-specific response functions, which are used to concert the raw photon counting projection data of an arbitrary image object into acrylic- and aluminum-equivalent pathlengths. Experimental results show the method not only remove the banding artifacts but also address the beam hardening artifacts.

Conference Presentation

Citation Download Citation

Mang Feng, Xu Ji, Ran Zhang, and Ke Li "Model-based inter- and intra-panel inconsistency correction for photon counting detector CT", Proc. SPIE 11595, Medical Imaging 2021: Physics of Medical Imaging, 115951V (15 February 2021); https://doi.org/10.1117/12.2580817

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