Results 91 to 100 of about 1,208,754 (253)

Myocardial characterization using late enhancement photon-counting detector CT in ventricular arrhythmia: comparison with electroanatomical mapping

open access: yesInsights into Imaging
Objectives This study aimed to assess the feasibility of left ventricular myocardial characterization in patients with ventricular arrhythmias using late enhancement (LE) photon-counting detector computed tomography (PCD-CT) scans, in comparison with ...
Victor Mergen   +13 more
doaj   +1 more source

Targeting LDHA Palmitoylation Sensitizes GBM to Chemoradiotherapy via Suppressing Palmitic Acid Induced Glycolytic Reprogramming

open access: yesAdvanced Science, EarlyView.
Mesenchymal GSCs preferentially uptake palmitic acid, thereby promoting ZDHHC12‐mediated LDHA palmitoylation. This modification enhances LDHA enzymatic activity, drives glycolytic reprogramming, and facilitates exosomal LDHA‐mediated TAM regulation.
Zijie Gao   +20 more
wiley   +1 more source

One‐Step Access to Ultra‐Bright Macrocyclic Oligo‐BODIPYs Featuring Long‐Lived Cyclic Excitons

open access: yesAngewandte Chemie, EarlyView.
Strong Fluorescence Meets Long Lifetimes: A template‐free, one‐step synthesis affords a series of methylene‐bridged macrocyclic oligo‐BODIPYs combining strong fluorescence with exceptionally long fluorescence lifetimes. Steady‐state and time‐resolved optical spectroscopy reveal unique excitonic coupling conditions and unusual size‐dependent ...
Lukas J. Patalag   +10 more
wiley   +2 more sources

Improvement of chest low-dose CT image quality with photon counting detector CT

open access: yesZhongguo linchuang yanjiu
Objective To compare the image quality of photon-counting detector CT (PCD-CT) images with that of conventional energy-integrating detector CT (EID-CT) images in chest low-dose CT (LDCT) imaging, and to investigate whether PCD-CT can achieve better ...
YUAN Yong   +3 more
doaj   +1 more source

Low-dose high-resolution chest CT in adults with cystic fibrosis: intraindividual comparison between photon-counting and energy-integrating detector CT

open access: yesEuropean Radiology Experimental
Background Regular disease monitoring with low-dose high-resolution (LD-HR) computed tomography (CT) scans is necessary for the clinical management of people with cystic fibrosis (pwCF).
Marko Frings   +16 more
doaj   +1 more source

Analysis of detector performance in a gigahertz clock rate quantum key distribution system [PDF]

open access: yes, 2011
We present a detailed analysis of a gigahertz clock rate environmentally robust phase-encoded quantum key distribution (QKD) system utilizing several different single-photon detectors, including the first implementation of an experimental resonant cavity
Mikio Fujiwara   +73 more
core   +1 more source

Increased Disarray of Extracellular Matrix Collagen‐I Fiber Network and Compromised Biomechanics in Aortae From Marfan‐Syndrome Mice Assessed Through Combined Opto‐Biomechatronics

open access: yesAdvanced Science, EarlyView.
Combined structure‐function assessment in aortic rings from Marfan mice using MechaMorph Opto‐Biomechatronics technology relates increased elasticity (stiffness) and dynamic viscosity and less ordered extracellular matrix 3D‐structure (collagen) as potential causes for impaired Windkessel function and compromised haemodynamics in Marfan's syndrome ...
Dominik Schneidereit   +10 more
wiley   +1 more source

Evaluation of an Analytic Reconstruction Method as a Platform for Spectral Cone-Beam CT

open access: yesIEEE Access, 2018
With the fast development of photon counting detection techniques, spectral computed tomography (CT) with a photon counting detector has attracted considerable attention by increasing energy resolution to identify and discriminate materials.
Huihua Kong   +3 more
doaj   +1 more source

Identification of media with a photon counting X-ray CT [PDF]

open access: yes, 2010
Modern x-ray CT systems measure the energy of all incident photons that enter the detector, thus it is very difficult to identify a medium with an x-ray CT image.
廣川 立磨
core  

TH‐A‐217BCD‐01: Challenges and Opportunities with Photon Counting CT

open access: yes, 2012
There is currently a large interest in photon counting CT detector research in both academia and industry. There are several detector systems and strategies to handle major challenges such as the very high count‐rate, while the energy information for ...
Danielsson, Mats,, M Danielsson
core   +1 more source

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