Results 41 to 50 of about 2,320,219 (340)

Histogram tomography

open access: yesMathematics in Engineering, 2020
In many tomographic imaging problems the data consist of integrals along lines or curves. Increasingly we encounter "rich tomography" problems where the quantity imaged is higher dimensional than a scalar per voxel, including vectors tensors and functions.
openaire   +4 more sources

Jet Tomography of Au+Au Reactions Including Multi-gluon Fluctuations [PDF]

open access: yes, 2001
Jet tomography is the analysis of the attenuation pattern of high transverse momentum hadrons to determine certain line integral transforms of the density profile of the QCD matter produced in ultra-relativistic nuclear collisions.
Ackermann   +29 more
core   +2 more sources

Ghost tomography

open access: yesOptica, 2018
Ghost tomography using single-pixel detection extends the emerging field of ghost imaging to three dimensions, with the use of penetrating radiation. In this work, a series of spatially random x-ray intensity patterns is used to illuminate a specimen in various tomographic angular orientations with only the total transmitted intensity being recorded by
Andrew. M. Kingston   +6 more
openaire   +4 more sources

Diagnosis of Serosal Invasion in Gastric Adenocarcinoma by Dual-Energy CT Radiomics: Focusing on Localized Gastric Wall and Peritumoral Radiomics Features

open access: yesFrontiers in Oncology, 2022
ObjectivesTo build a radiomics model and combined model based on dual-energy CT (DECT) for diagnosing serosal invasion in gastric adenocarcinoma.Materials and methods231 gastric adenocarcinoma patients were enrolled and randomly divided into a training ...
Li Yang   +7 more
doaj   +1 more source

Preoperative prediction of Lauren classification in gastric cancer: a radiomics model based on dual-energy CT iodine map

open access: yesInsights into Imaging, 2023
Objective To investigate the value of a radiomics model based on dual-energy computed tomography (DECT) venous-phase iodine map (IM) and 120 kVp equivalent mixed images (MIX) in predicting the Lauren classification of gastric cancer.
Min Li   +7 more
doaj   +1 more source

The role of artificial intelligence based on PET/CT radiomics in NSCLC: Disease management, opportunities, and challenges

open access: yesFrontiers in Oncology, 2023
ObjectivesLung cancer has been widely characterized through radiomics and artificial intelligence (AI). This review aims to summarize the published studies of AI based on positron emission tomography/computed tomography (PET/CT) radiomics in non-small ...
Qiuyuan Hu   +8 more
doaj   +1 more source

Radiogenomics in clear cell renal cell carcinoma: correlations between advanced CT imaging (texture analysis) and microRNAs expression [PDF]

open access: yes, 2019
Purpose: A relevant challenge for the improvement of clear cell renal cell carcinoma management could derive from the identification of novel molecular biomarkers that could greatly improve the diagnosis, prognosis, and treatment choice of these ...
Badia, S.   +12 more
core   +1 more source

The Power of Low Frequencies: Faraday Tomography in the sub-GHz regime

open access: yes, 2018
Faraday tomography, the study of the distribution of extended polarized emission by strength of Faraday rotation, is a powerful tool for studying magnetic fields in the interstellar medium of our Galaxy and nearby galaxies.
Van Eck, Cameron L.
core   +1 more source

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

Ovothiol A is the Main Antioxidant in Fish Lens

open access: yesMetabolites, 2019
Tissue protection from oxidative stress by antioxidants is of vital importance for cellular metabolism. The lens mostly consists of fiber cells lacking nuclei and organelles, having minimal metabolic activity; therefore, the defense of the lens tissue ...
Vadim V. Yanshole   +3 more
doaj   +1 more source

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