scholarly journals Quantitative accuracy and dose efficiency of dual‐contrast imaging using dual‐energy CT: a phantom study

2019 ◽  
Vol 47 (2) ◽  
pp. 441-456 ◽  
Author(s):  
Liqiang Ren ◽  
Kishore Rajendran ◽  
Cynthia H. McCollough ◽  
Lifeng Yu
Keyword(s):  
Dual Energy ◽  
Phantom Study ◽  
Dual Energy Ct ◽  
Contrast Imaging ◽  
Quantitative Accuracy ◽  
Dose Efficiency

scholarly journals [P015] Contrast of dual energy CT in carotid artery analysis, a phantom study

2018 ◽  
Vol 52 ◽  
pp. 102
Author(s):  
Rut Christiani ◽  
Hannu Eskola ◽  
Florentino Caetano Dos Santos ◽  
Päivi Laarne
Keyword(s):  
Carotid Artery ◽  
Dual Energy ◽  
Phantom Study ◽  
Dual Energy Ct

Dual-energy CT imaging of orbits during episcleral brachytherapy with Ru-106 plaques: A phantom study on its potential for plaque position verification

2020 ◽  
Vol 73 ◽  
pp. 1-7
Author(s):  
Kostas Perisinakis ◽  
Efstathios T. Detorakis ◽  
Antonis Tzedakis ◽  
Dimitrios A. Liakopoulos ◽  
Efrosini Papadaki ◽  
...  
Keyword(s):  
Dual Energy ◽  
Ct Imaging ◽  
Phantom Study ◽  
Dual Energy Ct

Performance of today's dual energy CT and future multi energy CT in virtual non-contrast imaging and in iodine quantification: A simulation study

2015 ◽  
Vol 42 (7) ◽  
pp. 4349-4366 ◽  
Author(s):  
Sebastian Faby ◽  
Stefan Kuchenbecker ◽  
Stefan Sawall ◽  
David Simons ◽  
Heinz-Peter Schlemmer ◽  
...  
Keyword(s):  
Simulation Study ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Contrast Imaging ◽  
Iodine Quantification

scholarly journals Reduction of peristalsis-related gastrointestinal streak artifacts with dual-energy CT: a patient and phantom study

2016 ◽  
Vol 41 (8) ◽  
pp. 1456-1465 ◽  
Author(s):  
Sebastian Winklhofer ◽  
Jack W. Lambert ◽  
Zhen Jane Wang ◽  
Yuxin Sun ◽  
Robert G. Gould ◽  
...  
Keyword(s):  
Dual Energy ◽  
Phantom Study ◽  
Dual Energy Ct ◽  
Streak Artifacts

Iodine Quantification With Dual-Energy CT: Phantom Study and Preliminary Experience With Renal Masses

2011 ◽  
Vol 196 (6) ◽  
pp. W693-W700 ◽  
Author(s):  
Hersh Chandarana ◽  
Alec J. Megibow ◽  
Benjamin A. Cohen ◽  
Ramya Srinivasan ◽  
Danny Kim ◽  
...  
Keyword(s):  
Dual Energy ◽  
Phantom Study ◽  
Dual Energy Ct ◽  
Renal Masses ◽  
Iodine Quantification

scholarly journals Non-contrast estimation of diffuse myocardial fibrosis with dual energy CT: A phantom study

2018 ◽  
Vol 12 (1) ◽  
pp. 74-80 ◽  
Author(s):  
Vidhya Kumar ◽  
Kevin E. McElhanon ◽  
James K. Min ◽  
Xin He ◽  
Zhaobin Xu ◽  
...  
Keyword(s):  
Myocardial Fibrosis ◽  
Dual Energy ◽  
Diffuse Myocardial Fibrosis ◽  
Phantom Study ◽  
Dual Energy Ct ◽  
Contrast Estimation

scholarly journals A method for material decomposition and quantification with grating based phase CT

PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0245449
Author(s):  
Shiwo Deng ◽  
Yining Zhu ◽  
Huitao Zhang ◽  
Qian Wang ◽  
Peiping Zhu ◽  
...  
Keyword(s):  
Noise Suppression ◽  
Dual Energy Ct ◽  
Reconstruction Technique ◽  
Material Decomposition ◽  
Contrast Imaging ◽  
Step Method ◽  
Quantitative Accuracy ◽  
One Step ◽  
Noise Amplification ◽  
Simultaneous Algebraic Reconstruction Technique

Material decomposition (MD) is an important application of computer tomography (CT). For phase contrast imaging, conventional MD methods are categorized into two types with respect to different operation sequences, i.e., “before” or “after” image reconstruction. Both categories come down to two-step methods, which have the problem of noise amplification. In this study, we incorporate both phase and absorption (PA) information into MD process, and correspondingly develop a simultaneous algebraic reconstruction technique (SART). The proposed method is referred to as phase & absorption material decomposition-SART (PAMD-SART). By iteratively solving an optimization problem, material composition and substance quantification are reconstructed directly from absorption and differential phase projections. Comparing with two-step MD, the proposed one-step method is superior in noise suppression and accurate decomposition. Numerical simulations and synchrotron radiation based experiments show that PAMD-SART outperforms the classical MD method (image-based and dual-energy CT iterative method), especially for the quantitative accuracy of material equivalent atomic number.

Accuracy of iodine removal using dual-energy CT with or without a tin filter: an experimental phantom study

2013 ◽  
Vol 54 (8) ◽  
pp. 954-960 ◽  
Author(s):  
Tatsuya Kawai ◽  
Mitsuru Takeuchi ◽  
Masaki Hara ◽  
Kazuya Ohashi ◽  
Hirochika Suzuki ◽  
...  
Keyword(s):  
Dual Energy ◽  
Phantom Study ◽  
Dual Energy Ct ◽  
Tin Filter
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