Results 41 to 50 of about 3,156,249 (386)

Radiomics nomogram for preoperative differentiation of pulmonary mucinous adenocarcinoma from tuberculoma in solitary pulmonary solid nodules

open access: yesBMC Cancer, 2023
Objective To develop and validate predictive models using clinical parameters, radiomic features and a combination of both for preoperative differentiation of pulmonary nodular mucinous adenocarcinoma (PNMA) from pulmonary tuberculoma (PTB).
Junjie Zhang   +6 more
doaj   +1 more source

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

Quantum Tomography twenty years later

open access: yes, 2015
A sample of some relevant developments that have taken place during the last twenty years in classical and quantum tomography are displayed. We will present a general conceptual framework that provides a simple unifying mathematical picture for all of ...
Asorey, M.   +3 more
core   +1 more source

Stripe sensor tomography [PDF]

open access: yes, 2008
We introduce a general concept of tomographic imaging for the case of an imaging sensor that has a stripelike shape. We first show that there is no difference, in principle, between two-dimensional tomography using conventional electromagnetic or ...
Barbic, Mladen   +4 more
core   +1 more source

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

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

Ancilla-assisted quantum process tomography [PDF]

open access: yes, 2003
Complete and precise characterization of a quantum dynamical process can be achieved via the method of quantum process tomography. Using a source of correlated photons, we have implemented several methods investigating a wide range of processes, e.g ...
Altepeter, J. B.   +8 more
core   +3 more sources

The promise and the challenges of cryo‐electron tomography

open access: yesFEBS Letters, 2020
Structural biologists have traditionally approached cellular complexity in a reductionist manner in which the cellular molecular components are fractionated and purified before being studied individually.
M. Turk, W. Baumeister
semanticscholar   +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

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