Results 21 to 30 of about 9,155,379 (405)

Contrast Administration Impacts CT-Based Radiomics of Colorectal Liver Metastases and Non-Tumoral Liver Parenchyma Revealing the “Radiological” Tumour Microenvironment

open access: yesDiagnostics, 2021
The impact of the contrast medium on the radiomic textural features (TF) extracted from the CT scan is unclear. We investigated the modification of TFs of colorectal liver metastases (CLM), peritumoral tissue, and liver parenchyma.
Francesco Fiz   +10 more
doaj   +1 more source

Intravenous contrast agents in diabetic patients taking metformin; an updated review on current concepts [PDF]

open access: yesJournal of Nephropathology, 2020
Iodinated contrast agents are routinely used to diagnose a variety of diseases especially malignant tumors. They are crucial for accurate depiction of tumors, monitoring the response to treatment, and assessing possible recurrence of malignant lesions ...
Masoumeh Asgharpour   +3 more
doaj   +1 more source

Underwater Image Enhancement via Medium Transmission-Guided Multi-Color Space Embedding [PDF]

open access: yesIEEE Transactions on Image Processing, 2021
Underwater images suffer from color casts and low contrast due to wavelength- and distance-dependent attenuation and scattering. To solve these two degradation issues, we present an underwater image enhancement network via medium transmission-guided ...
Chongyi Li   +5 more
semanticscholar   +1 more source

A Deep Learning Approach for Virtual Contrast Enhancement in Contrast Enhanced Spectral Mammography [PDF]

open access: yesComputerized Medical Imaging and Graphics 116 (2024) 102398, 2023
Contrast Enhanced Spectral Mammography (CESM) is a dual-energy mammographic imaging technique that first needs intravenously administration of an iodinated contrast medium; then, it collects both a low-energy image, comparable to standard mammography, and a high-energy image.
arxiv   +1 more source

Atorvastatin protects against contrast-induced acute kidney injury via upregulation of endogenous hydrogen sulfide

open access: yesRenal Failure, 2020
Background Contrast-induced acute kidney injury (CIAKI) is the third leading cause of acute renal failure in hospitalized patients. This study was aimed to investigate whether atorvastatin could upregulate the expression of hydrogen sulfide (H2S) and ...
Lin Yan   +8 more
doaj   +1 more source

Counterflow dynamics of two correlated impurities immersed in a bosonic gas [PDF]

open access: yes, 2021
The counterflow dynamics of two correlated impurities in a double-well coupled to an one-dimensional bosonic medium is explored. We determine the ground state phase diagram of the system according to the impurity-medium entanglement and the impurities two-body correlations.
arxiv   +1 more source

Urinary NGAL, IGFBP-7, and TIMP-2: novel biomarkers to predict contrast medium-induced acute kidney injury in children

open access: yesRenal Failure, 2022
Background Serum creatinine (SCr) is unreliable in detecting acute changes in kidney function. Early recognition of contrast-induced acute kidney injury (CI-AKI) can provide better opportunities for preventive interventions.
Qianliang Sun   +3 more
doaj   +1 more source

Post-contrast acute kidney injury – Part 1: Definition, clinical features, incidence, role of contrast medium and risk factors

open access: yesEuropean Radiology, 2018
PurposeThe Contrast Media Safety Committee (CMSC) of the European Society of Urogenital Radiology (ESUR) has updated its 2011 guidelines on the prevention of post-contrast acute kidney injury (PC-AKI).
A. J. van der Molen   +10 more
semanticscholar   +1 more source

Use of contrast‐enhanced computed tomography to detect kidney infarction in dogs

open access: yesJournal of Veterinary Internal Medicine, 2022
Background Kidney infarction is a renovascular disease diagnosed by contrast‐enhanced computed tomography (CECT) in humans. Objectives To describe the frequency of kidney infarction and to determine the detection of kidney infarction with CECT in dogs ...
Somchin Sutthigran   +7 more
doaj   +1 more source

Medium-resolution integral-field spectroscopy for high-contrast exoplanet imaging [PDF]

open access: yesAstronomy & Astrophysics, 2018
Context. Angular differential imaging (ADI) and spectral differential imaging (SDI) are well-established high-contrast imaging techniques, but their application is challenging for companions at small angular separations from their host stars. Aims.
H. J. Hoeijmakers   +7 more
semanticscholar   +1 more source

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