An outlook on x-ray CT research and development.
Ge Wang,Hengyong Yu,Bruno De Man +2 more
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TLDR
12 topics the authors expect to be critical in the next decade of computed tomography research and development are emphasized, emphasizing analytic reconstruction, iterative reconstruction, local/interior reconstruction, flat-panel based CT, dual-source CT, multi- source CT, novel scanning modes, energy-sensitive CT, nano-CT, artifact reduction, modality fusion, and phase-contrast CT.Abstract:
Over the past decade, computed tomography (CT) theory, techniques and applications have undergone a rapid development. Since CT is so practical and useful, undoubtedly CT technology will continue advancing biomedical and non-biomedical applications. In this outlook article, we share our opinions on the research and development in this field, emphasizing 12 topics we expect to be critical in the next decade: analytic reconstruction, iterative reconstruction, local/interior reconstruction, flat-panel based CT, dual-source CT, multi-source CT, novel scanning modes, energy-sensitive CT, nano-CT, artifact reduction, modality fusion, and phase-contrast CT. We also sketch several representative biomedical applications.read more
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SCCT guidelines on radiation dose and dose-optimization strategies in cardiovascular CT
Sandra S. Halliburton,Suhny Abbara,Marcus Y. Chen,Ralph Gentry,Mahadevappa Mahesh,Gilbert L. Raff,Leslee J. Shaw,Jörg Hausleiter +7 more
TL;DR: The Society of Cardiovascular Computed Tomography has produced a guideline document to review available data and provide recommendations regarding interpretation of radiation dose indices and predictors of risk, appropriate use of scanner acquisition modes and settings, development of algorithms for dose optimization, and establishment of procedures for dose monitoring.
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Radiation dose reduction in computed tomography: techniques and future perspective
Lifeng Yu,Xin Liu,Shuai Leng,James M. Kofler,Juan Carlos Ramirez-Giraldo,Mingliang Qu,Jodie A. Christner,Joel G. Fletcher,Cynthia H. McCollough +8 more
TL;DR: The general technical strategies that are commonly used for radiation dose management in CT are summarized, and dose-management strategies for pediatric CT, cardiac CT, dual-energy CT, CT perfusion and interventional CT are specifically discussed.
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Tensor-Based Formulation and Nuclear Norm Regularization for Multienergy Computed Tomography
TL;DR: The generalized tensor nuclear norm can be used as a standalone regularization technique for the energy selective (spectral) computed tomography problem and when combined with total variation regularization it enhances the regularization capabilities especially at low energy images where the effects of noise are most prominent.
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Fast Model-Based X-Ray CT Reconstruction Using Spatially Nonhomogeneous ICD Optimization
TL;DR: A fast model-based iterative reconstruction algorithm using spatially nonhomogeneous ICD (NH-ICD) optimization that accelerates the reconstructions by roughly a factor of three on average for typical 3-D multislice geometries is presented.
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Quantitative imaging of element composition and mass fraction using dual-energy CT: Three-material decomposition
TL;DR: A mass-conservation based, three-material decomposition dual-energy CT algorithm is described and experimental validation of the accuracy of the technique presented is presented, demonstrating that the method can accurately measure elemental concentrations under low noise imaging conditions.
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