Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Experimental demonstration and optimization of X-ray StaticCodeCT

Abstract

As the use of X-ray computed tomography (CT) grows in medical diagnosis, so does the concern for the harm a radiation dose can cause and the biological risks it represents. StaticCodeCT is a new low-dose imaging architecture that uses a single-static coded aperture (CA) in a CT gantry. It exploits the highly correlated data in the projection domain to estimate the unobserved measurements on the detector. We previously analyzed the StaticCodeCT system by emulating the effect of the coded mask on experimental CT data. In contrast, this manuscript presents test-bed reconstructions using an experimental cone-beam X-ray CT system with a CA holder. We analyzed the reconstruction quality using three different techniques to manufacture the CAs: metal additive manufacturing, cold casting, and ceramic additive manufacturing. Furthermore, we propose an optimization method to design the CA pattern based on the algorithm developed for the measurement estimation. The obtained results point to the possibility of the real deployment of StaticCodeCT systems in practice.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
StaticCodeCT: single coded aperture tensorial X-ray CT

Angela P. Cuadros, Xu Ma, Carlos M. Restrepo, and Gonzalo R. Arce
Opt. Express 29(13) 20558-20576 (2021)

Static coded illumination strategies for low-dose x-ray material decomposition

Angela P. Cuadros, Carlos M. Restrepo, Peter Noël, and Gonzalo R. Arce
Appl. Opt. 61(6) C107-C115 (2022)

High-resolution coded aperture optimization for super-resolved compressive x-ray cone-beam computed tomography

Edson Mojica, Claudia V. Correa, and Henry Arguello
Appl. Opt. 60(4) 959-970 (2021)

Data Availability

Data underlying the results presented in Section 4 will be available in [31] in October 2021; nonetheless, they are available from the corresponding author upon reasonable request.

31. A. Cuadros, “Sparse sampling in x-ray computed tomography via spatial and spectral coded illumination,” Ph.D. thesis (University of Delaware, 2020).

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved