Results 11 to 20 of about 69,048 (297)
Spectral cardiac CT in acute stroke patients [PDF]
Scientific Reports, 2023 Cardiac CT obtained in acute ischemic stroke patients can facilitate timely detection of cardiac sources of embolism and guide secondary prevention strategies. Spectral CT exploiting the simultaneous acquisition of separate higher-energy and lower-energy
Naomi Larsen +9 more
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Systematic Review on Learning-Based Spectral CT
IEEE Transactions on Radiation and Plasma Medical SciencesSpectral computed tomography (CT) has recently emerged as an advanced version of medical CT and significantly improves conventional (single-energy) CT. Spectral CT has two main forms: dual-energy computed tomography (DECT) and photon-counting computed tomography (PCCT), which offer image improvement, material decomposition, and feature quantification ...
Alexandre Bousse +7 more
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The value of dual-energy spectral CT in differentiating solitary pulmonary tuberculosis and solitary lung adenocarcinoma [PDF]
Frontiers in Oncology, 2022 BackgroundTo explore the value of dual-energy spectral CT in distinguishing solitary pulmonary tuberculosis (SP-TB) from solitary lung adenocarcinoma (S-LUAD).MethodsA total of 246 patients confirmed SP-TB (n = 86) or S-LUAD (n = 160) were ...
Guojin Zhang +18 more
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Gemstone Energy Spectral CT Multimodal Technique for Diagnosis of Acute Ischemic Stroke
CT Lilun yu yingyong yanjiu, 2022 Objective: To explore the clinical application of multi-modal gemstone spectral CT in acute ischemic stroke. Methods: The spectral noncontrast CT, CTA and CTP images of 58 patients with acute ischemic stroke in our hospital were retrospectively analyzed,
Shichang XU +6 more
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A Preliminary Study of Spectral CT in Predicting Pfirrmann Grading of Lumbar Intervertebral Disc
CT Lilun yu yingyong yanjiu, 2022 Objective: To investigate the predictive value of material separation technology of spectral CT in Pfirrmann grading of lumbar intervertebral disc degeneration.
Rui LI +6 more
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Deep learning based spectral CT imaging [PDF]
Neural Networks, 2021 Spectral computed tomography (CT) has attracted much attention in radiation dose reduction, metal artifacts removal, tissue quantification and material discrimination. The x-ray energy spectrum is divided into several bins, each energy-bin-specific projection has a low signal-noise-ratio (SNR) than the current-integrating counterpart, which makes image
Weiwen Wu +9 more
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Progress of Material Decomposition Algorithms in Dual-energy CT Imaging
CT Lilun yu yingyong yanjiu, 2023 Spectral CT can produce basis materials with different X-ray energies. Subsequently, the generated basis materials can be used for qualitative and quantitative evaluation of tissue components and contrast agent distribution.
Qiao GUO, Xufeng YAO
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Spectral CT Reconstruction With Image Sparsity and Spectral Mean [PDF]
IEEE Transactions on Computational Imaging, 2016 Photon-counting detectors can acquire x-ray intensity data in different energy bins. The signal to noise ratio of resultant raw data in each energy bin is generally low due to the narrow bin width and quantum noise. To address this problem, here we propose an image reconstruction approach for spectral CT to simultaneously reconstructs x-ray attenuation
Yi Zhang 0018 +5 more
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A comparison study of dual-energy spectral CT and 18F-FDG PET/CT in primary tumors and lymph nodes of lung cancer [PDF]
, 2021 PURPOSE We aimed to investigate whether there is a correlation between dual-energy spectral computed tomography (DESCT) and 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) parameters in primary tumor and ...
Nurgul Orhan Metin +9 more
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Successful Whole-Body Spectral CT with Intra-Osseous Iodine Injection
Journal of the Belgian Society of Radiology, 2020 Teaching point: Intra-osseous access for contrast medium injection represents an alternative route for emergency CT in patients with compromised venous access.
Adrienne Coche +2 more
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