Development and implementation of a high-performance, cardiac-gated dual-energy imaging system

2007 ◽  
Author(s):  
N. A. Shkumat ◽  
J. H. Siewerdsen ◽  
A. C. Dhanantwari ◽  
D. B. Williams ◽  
S. Richard ◽  
...  
Keyword(s):  
High Performance ◽  
Imaging System ◽  
Dual Energy ◽  
Dual Energy Imaging

Dual Energy Imaging using a Commercial On-board Imaging System

2011 ◽  
Vol 81 (2) ◽  
pp. S125
Author(s):  
J.C. Roeske ◽  
J. Luce ◽  
J. Lin ◽  
T. Bray ◽  
S.N. Nagda
Keyword(s):  
Imaging System ◽  
Dual Energy ◽  
Dual Energy Imaging

scholarly journals Development of a High-performance Dual-energy Chest Imaging System

2009 ◽  
Vol 16 (4) ◽  
pp. 464-476 ◽  
Author(s):  
Hany Kashani ◽  
Jianan Grace Gang ◽  
Nicholas A. Shkumat ◽  
Carlos A. Varon ◽  
John Yorkston ◽  
...  
Keyword(s):  
High Performance ◽  
Imaging System ◽  
Dual Energy ◽  
Chest Imaging

High-performance dual-energy imaging with a flat-panel detector: imaging physics from blackboard to benchtop to bedside

2006 ◽  
Author(s):  
J. H. Siewerdsen ◽  
N. A. Shkumat ◽  
A. C. Dhanantwari ◽  
D. B. Williams ◽  
S. Richard ◽  
...  
Keyword(s):  
High Performance ◽  
Dual Energy ◽  
Flat Panel ◽  
Flat Panel Detector ◽  
Dual Energy Imaging

WE-E-330D-04: High-Performance Dual-Energy Imaging with a Flat-Panel Detector: Answering the Challenge of Dual-KVp Flood-Field Correction

2006 ◽  
Vol 33 (6Part20) ◽  
pp. 2252-2252
Author(s):  
A Dhanantwari ◽  
J Siewerdsen ◽  
N Shkumat ◽  
D Williams ◽  
S Richard ◽  
...  
Keyword(s):  
High Performance ◽  
Dual Energy ◽  
Flat Panel ◽  
Flat Panel Detector ◽  
Dual Energy Imaging

scholarly journals A novel phantom for characterization of dual energy imaging using an on-board imaging system

2019 ◽  
Vol 64 (3) ◽  
pp. 03NT01 ◽  
Author(s):  
Maksat Haytmyradov ◽  
Rakesh Patel ◽  
Hassan Mostafavi ◽  
Murat Surucu ◽  
Adam Wang ◽  
...  
Keyword(s):  
Imaging System ◽  
Dual Energy ◽  
Dual Energy Imaging

Dual energy imaging using a clinical on-board imaging system

2013 ◽  
Vol 58 (12) ◽  
pp. 4331-4340 ◽  
Author(s):  
M A Hoggarth ◽  
J Luce ◽  
F Syeda ◽  
T S Bray ◽  
A Block ◽  
...  
Keyword(s):  
Imaging System ◽  
Dual Energy ◽  
Dual Energy Imaging

Material Identification in Presence of Metal for Baggage Screening

2020 ◽  
Vol 2020 (14) ◽  
pp. 294-1-294-8
Author(s):  
Sandamali Devadithya ◽  
David Castañón
Keyword(s):  
Atomic Number ◽  
Effective Atomic Number ◽  
Simulated Data ◽  
Dual Energy ◽  
Basis Functions ◽  
Total Variation Regularization ◽  
Ct Scanner ◽  
Edge Preserving ◽  
Baggage Screening ◽  
Dual Energy Imaging

Dual-energy imaging has emerged as a superior way to recognize materials in X-ray computed tomography. To estimate material properties such as effective atomic number and density, one often generates images in terms of basis functions. This requires decomposition of the dual-energy sinograms into basis sinograms, and subsequently reconstructing the basis images. However, the presence of metal can distort the reconstructed images. In this paper we investigate how photoelectric and Compton basis functions, and synthesized monochromatic basis (SMB) functions behave in the presence of metal and its effect on estimation of effective atomic number and density. Our results indicate that SMB functions, along with edge-preserving total variation regularization, show promise for improved material estimation in the presence of metal. The results are demonstrated using both simulated data as well as data collected from a dualenergy medical CT scanner.

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