Results 141 to 150 of about 1,646,093 (289)

Identification of a small thrombus in the left ventricle identified on iodine maps derived from dual-source photon-counting detector CT

open access: yesRadiology Case Reports
Transthoracic echocardiography is the main imaging modality to diagnose left ventricular thrombus (LVT), but its efficacy in certain cases is suboptimal.
Masaya Kisohara, MD, PhD   +5 more
doaj   +1 more source

Assessment of metal artifacts from titanium wrist prostheses: photon-counting versus energy-integrating detector CT

open access: yesEuropean Radiology Experimental
Background We compared photon-counting detector computed tomography (PCD-CT) polyenergetic images, PCD-CT virtual monoenergetic images (VMI), and energy-integrating detector computed tomography (EID-CT) polyenergetic images regarding bone visualization ...
Nina Kämmerling   +5 more
doaj   +1 more source

Development of a Photon Counting X-ray CT System for the Material Identification [PDF]

open access: yes, 2013
The purpose of our research is to develop a photon counting X-ray CT system for the material identification. We developed a new CdTe detector that was able to measure x-rays with the count rate of 107 counts/sec/m㎡ with four energy windows. The size of a
小林 透
core  

Rapid assessment of fern spore quality using microscale electrical conductivity testing

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise Ex situ spore banks are essential for fern conservation and research, yet traditional germination tests for assessing spore quality are time consuming and labor intensive. We explored whether electrical conductivity (EC), a rapid proxy for seed vigor, could offer an efficient alternative for evaluating fern spore quality. Methods Using
Yao‐Moan Huang   +5 more
wiley   +1 more source

Photon counting CT clinical adoption, integration, and workflow

open access: yes
Photon counting CT was recently introduced into clinical practice [Rajendran K, Petersilka M, Henning A, Shanblatt ER, Schmidt B, Flohr TG, Ferrero A, Baffour F, Diehn FE, Yu L, Rajiah P, Fletcher JG, Leng S, McCollough CH. First Clinical Photon-counting
Dane, Bari   +5 more
core   +1 more source

Lung Ultrasound for the Detection of Radiologic Progression of Interstitial Lung Abnormalities in Patients With Rheumatoid Arthritis

open access: yesArthritis &Rheumatology, EarlyView.
Objective Interstitial lung disease (ILD) is an important extra‐articular manifestation of rheumatoid arthritis (RA) associated with high mortality and morbidity. Lung ultrasonography (LUS) has recently emerged as a possible screening tool. We assessed the role of LUS in monitoring radiologic progression and the development of new interstitial lung ...
Marie Vermant   +15 more
wiley   +1 more source

Energy-resolved CT imaging with a photon-counting silicon-strip detector

open access: yes, 2014
Photon-counting detectors are promising candidates for use in the next generation of x-ray computed tomography (CT) scanners. Among the foreseen benefits are higher spatial resolution, better trade-off between noise and dose and energy discriminating ...
Danielsson, Mats,   +8 more
core   +1 more source

Expert Perspectives: Defining and Managing Progressive Pulmonary Fibrosis in Systemic Sclerosis

open access: yesArthritis &Rheumatology, EarlyView.
Systemic sclerosis–associated interstitial lung disease (SSc‐ILD) is one of the leading causes of morbidity and mortality in SSc, affecting up to three‐quarters of patients. The disease course is highly heterogeneous, ranging from indolent, nonprogressive forms to rapidly progressive pulmonary fibrosis (PPF).
Devis Benfaremo   +7 more
wiley   +1 more source

Virtual calcium removal in calcified coronary arteries with photon-counting detector CT—first in-vivo experience

open access: yesFrontiers in Cardiovascular Medicine
Purpose To evaluate the feasibility and accuracy of quantification of calcified coronary stenoses using virtual non-calcium (VNCa) images in coronary CT angiography (CCTA) with photon-counting detector (PCD) CT compared with quantitative coronary ...
V. Mergen   +9 more
semanticscholar   +1 more source

Photon-counting-detector CT outperforms state-of-the-art cone-beam and energy-integrated-detector CT in delineation of dental root canals

open access: yesScientific Reports
This experimental phantom study investigates current standard of care protocols in cone beam computed tomography (CBCT), energy-integrating-detector (EID) CT, and photon-counting-detector (PCD) CT regarding their potential in delineation of dental root ...
S. Rau   +9 more
semanticscholar   +1 more source

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