Results 121 to 130 of about 1,208,754 (253)

Influence of virtual monoenergetic reconstructions on coronary CT angiography-based fractional flow reserve with photon-counting detector CT: intra-individual comparison with energy-integrating detector CT

Insights into Imaging
Objectives This study aimed to assess the impact of the photon-counting detector (PCD)-CT-based virtual monoenergetic image (VMI) reconstruction keV levels on CT-based fractional flow reserve (CT-FFR), compared to the energy-integrating detector (EID)-CT.
Giuseppe Tremamunno, Daniel Pinos, Emese Zsarnoczay, U. Joseph Schoepf, Milan Vecsey-Nagy, Chiara Gnasso, Nicola Fink, Dmitrij Kravchenko, Muhammad Taha Hagar, Joseph Griffith, Jim O’Doherty, Andrea Laghi, Tilman Emrich, Akos Varga-Szemes   +13 more
doaj   +1 more source

Application of Ultra-high-resolution Scanning in Abdominal Artery CTA Using Photon-counting CT

CT Lilun yu yingyong yanjiu
Objective: We evaluated the application of ultra-high-resolution scanning in abdominal artery computed tomography angiography (CTA) using photon-counting CT.
Lingyun WANG, Bowen SHI, Jiqiang LI, Haipeng DONG, Xiaoyu LV, Zhaocheng PAN   +5 more
doaj   +1 more source

Assessment of candidate elements for development of spectral photon-counting CT specific contrast agents

, 2018
International audienceAbstract Spectral photon-counting computed tomography (SPCCT) is a rapidly emerging imaging modality that provides energy-dependent information on individual x-ray photons, leading to accurate material decomposition and simultaneous
Bar-Ness, Daniel, Si-Mohamed, Salim, Blevis, Ira, Cormode, David, Coulon, Philippe, Douek, Philippe, Kim, Johoon   +6 more
core   +1 more source

An Image-Based Prior Knowledge-Free Approach for a Multi-Material Decomposition in Photon-Counting Computed Tomography

Diagnostics
Photon-counting CT systems generally allow for acquiring multiple spectral datasets and thus for decomposing CT images into multiple materials. We introduce a prior knowledge-free deterministic material decomposition approach for quantifying three ...
Jonas Neumann, Tristan Nowak, Bernhard Schmidt, Joachim von Zanthier   +3 more
doaj   +1 more source

Rapid assessment of fern spore quality using microscale electrical conductivity testing

Applications 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, Chia‐Wen Ko, Chin‐Tzer Duh, Chu‐Mei Huang, Wen‐Liang Chiou, Tzu‐Tong Kao   +5 more
wiley   +1 more source

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

Arthritis &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, Valerie Van Ballaer, Joseph Jacob, Tine Follet, Ryoko Egashira, Kenny Anseele, Heleen Cypers, Laurens J. De Sadeleer, Nico De Crem, Tinne Goos, Barbara Neerinckx, Veerle Taelman, Nathalie Veyt, Alexandros Kalkanis, Patrick Verschueren, Wim A. Wuyts   +15 more
wiley   +1 more source

Beam hardening of K-edge contrast agents: a phantom study comparing clinical energy-integrating detector and photon-counting detector CT systems

European Radiology Experimental
Background Beam hardening (BH) artifacts negatively influence computed tomography (CT) measurements, especially when due to dense materials or materials with high effective atomic numbers. Photon-counting detectors (PCD) are more susceptible to BH due to
Amir Pourmorteza, Arnaud Richard Choux, Thomas Wesley Holmes, U. Joseph Schoepf, Marly van Assen, Carlo De Cecco, Tilman Emrich, Akos Varga-Szemes   +7 more
doaj   +1 more source

Noninvasive Diagnosis of Splenosis Using Tc‐99m Heat‐Denatured Red Blood Cell Scintigraphy

American Journal of Hematology, EarlyView.
Natacha Dewarrat, Katharina Auf der Springe, Francesco Grandoni, Rami Hajri, Mathilde Gavillet   +4 more
wiley   +1 more source

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

Arthritis &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, Dinesh Khanna, Corrado Campochiaro, Vincent Cottin, Fabrizio Luppi, Marco Matucci‐Cerinic, Gianluca Moroncini, Yannick Allanore   +7 more
wiley   +1 more source

Paediatric development of radiopharmaceutical imaging agents and radioligand therapeutics

British Journal of Clinical Pharmacology, EarlyView.
Abstract This review focuses on the development of radiopharmaceutical imaging agents and radioligand therapeutics for paediatric use. Nuclear medicine plays an important role in the diagnosis and treatment of various childhood conditions, including cancers, infections and brain disorders.
Justin L. Hay, Amandine Manon, Hunter Stephens, S. Y. Amy Cheung, Bart de Keizer, Erik T. te Beek   +5 more
wiley   +1 more source