Optimize non-contrast head CT imaging tasks using multiple virtual monochromatic image sets in dual-energy spectral CT

2020 ◽  
Vol 28 (2) ◽  
pp. 345-356
Author(s):  
Xiaohu Li ◽  
Zhijie Li ◽  
Jianying Li ◽  
Jian Song ◽  
Yongqiang Yu ◽  
...  
Keyword(s):  
Dual Energy ◽  
Ct Imaging ◽  
Spectral Ct ◽  
Head Ct ◽  
Monochromatic Image ◽  
Virtual Monochromatic Image

Dual energy spectral CT imaging for the evaluation of small hepatocellular carcinoma microvascular invasion

2017 ◽  
Vol 95 ◽  
pp. 222-227 ◽  
Author(s):  
Chuang-bo Yang ◽  
Shuang Zhang ◽  
Yong-jun Jia ◽  
Yong Yu ◽  
Hai-feng Duan ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Dual Energy ◽  
Ct Imaging ◽  
Microvascular Invasion ◽  
Small Hepatocellular Carcinoma ◽  
Spectral Ct

Dual energy spectral CT imaging of insulinoma—Value in preoperative diagnosis compared with conventional multi-detector CT

2012 ◽  
Vol 81 (10) ◽  
pp. 2487-2494 ◽  
Author(s):  
Xiao Zhu Lin ◽  
Zhi Yuan Wu ◽  
Ran Tao ◽  
Yan Guo ◽  
Jian Ying Li ◽  
...  
Keyword(s):  
Preoperative Diagnosis ◽  
Dual Energy ◽  
Ct Imaging ◽  
Spectral Ct

Improving diagnostic accuracy for arteries of lower extremities with dual-energy spectral CT imaging

2020 ◽  
Vol 128 ◽  
pp. 109061
Author(s):  
Xiaoqian Jia ◽  
Xianjun Li ◽  
Jianying Li ◽  
Qian Tian ◽  
Yue Yao ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Lower Extremities ◽  
Dual Energy ◽  
Ct Imaging ◽  
Spectral Ct

Iterative dynamic dual-energy CT algorithm in reducing statistical noise in multi-energy CT imaging

2021 ◽  
Author(s):  
Yidi Yao ◽  
Liang Li ◽  
Zhiqiang Chen
Keyword(s):  
Noise Level ◽  
Photon Counting ◽  
Reconstruction Algorithm ◽  
Dual Energy ◽  
Ct Imaging ◽  
Dual Energy Ct ◽  
Spectral Ct ◽  
Photon Counting Detectors ◽  
Ct Data ◽  
Statistical Noise

Abstract Multi-energy spectral CT has a broader range of applications with the recent development of photon-counting detectors. However, the photons counted in each energy bin decrease when the number of energy bins increases, which causes a higher statistical noise level of the CT image. In this work, we propose a novel iterative dynamic dual-energy CT algorithm to reduce the statistical noise. In the proposed algorithm, the multi-energy projections are estimated from the dynamic dual-energy CT data during the iterative process. The proposed algorithm is verified on sufficient numerical simulations and a laboratory two-energy-threshold PCD system. By applying the same reconstruction algorithm, the dynamic dual-energy CT's final reconstruction results have a much lower statistical noise level than the conventional multi-energy CT. Moreover, based on the analysis of the simulation results, we explain why the dynamic dual-energy CT has a lower statistical noise level than the conventional multi-energy CT. The reason is that: the statistical noise level of multi-energy projection estimated with the proposed algorithm is much lower than that of the conventional multi-energy CT, which leads to less statistical noise of the dynamic dual-energy CT imaging.

scholarly journals Dual Energy Spectral CT Imaging in the assessment of Gastric Cancer and cell proliferation: A Preliminary Study

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Sai-Ming Cheng ◽  
Wei Ling ◽  
Jiong Zhu ◽  
Jian-Rong Xu ◽  
Lian-Ming Wu ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Cell Proliferation ◽  
Dual Energy ◽  
Ct Imaging ◽  
Spectral Ct ◽  
Preliminary Study

scholarly journals Gastric Cancer Staging with Dual Energy Spectral CT Imaging

PLoS ONE ◽  
2013 ◽  
Vol 8 (2) ◽  
pp. e53651 ◽  
Author(s):  
Zilai Pan ◽  
Lifang Pang ◽  
Bei Ding ◽  
Chao Yan ◽  
Huan Zhang ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Cancer Staging ◽  
Dual Energy ◽  
Ct Imaging ◽  
Spectral Ct

Differentiation of neoplastic from bland macroscopic portal vein thrombi using dual-energy spectral CT imaging: a pilot study

2012 ◽  
Vol 22 (10) ◽  
pp. 2178-2185 ◽  
Author(s):  
Li Jun Qian ◽  
Jiong Zhu ◽  
Zhi Guo Zhuang ◽  
Qiang Xia ◽  
Yu Fan Cheng ◽  
...  
Keyword(s):  
Pilot Study ◽  
Portal Vein ◽  
Dual Energy ◽  
Ct Imaging ◽  
Spectral Ct
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