Results 31 to 40 of about 6,942,219 (182)

Improved detectability of hypoattenuating focal pancreatic lesions by dual-layer computed tomography using virtual monoenergetic images

The Egyptian Journal of Radiology and Nuclear Medicine, 2020
Background Multidetector CT is the mainstay for radiologic evaluation of pancreatic pathology. Still, imaging of focal pancreatic lesions using MDCT is faced by a number of challenges that are related to the limited contrast between the lesion and ...
Nada El Kayal, Ahmed Mohallel, David Maintz, Mohamed Eid, Doaa Mokhtar Emara   +4 more
doaj   +1 more source

Low-keV virtual monoenergetic images with rapid kilovoltage-switching DECT for differentiating complicated from uncomplicated appendicitis in adults. [PDF]

Abdom Radiol (NY)
OBJECTIVES: Low-keV virtual monoenergetic images on dual-energy CT (DECT) enhance iodine attenuation in inflamed appendiceal walls, but the role in differentiating complicated from uncomplicated appendicitis remains unclear. This is particularly relevant
Wongsaengchan D, Chatpuwaphat J, Thiravit S, Tongsai S, Noppakunsomboon N, Kaewlai R.   +5 more
europepmc   +2 more sources

Fast, automated optimization of virtual monoenergetic images with the dual-energy image synthesizer for cone-beam CT. [PDF]

J Appl Clin Med Phys
AbstractBackgroundDual‐energy cone‐beam CT (DE‐CBCT) has become subject of recent interest due to the ability to produce virtual monoenergetic images (VMIs) with improved soft‐tissue contrast and reduced nonuniformity artifacts. However, efficient production and optimization of VMIs remains an under‐explored part of DE‐CBCT's application.PurposeThis ...
Keeler A, Luce J, Lehmann M, Roeske JC, Kang H.   +4 more
europepmc   +3 more sources

Dual-Energy CT of the Heart: A Review

Journal of Imaging, 2022
Dual-energy computed tomography (DECT) represents an emerging imaging technique which consists of the acquisition of two separate datasets utilizing two different X-ray spectra energies.
Serena Dell’Aversana, Raffaele Ascione, Marco De Giorgi, Davide Raffaele De Lucia, Renato Cuocolo, Marco Boccalatte, Gerolamo Sibilio, Giovanni Napolitano, Giuseppe Muscogiuri, Sandro Sironi, Giuseppe Di Costanzo, Enrico Cavaglià, Massimo Imbriaco, Andrea Ponsiglione   +13 more
doaj   +1 more source

Dual-Energy CT Arthrography: Advanced Muscolo-Skelatal Applications in Clinical Practice

Tomography, 2023
This paper provides a comprehensive overview of the potential applications of dual-energy CT (DECT) in improving image quality and the diagnostic capabilities of CT arthrography (CTA) in clinical practice. The paper covers the use of virtual non-contrast
Giovanni Foti, Christian Booz, Giuseppe Mauro Buculo, Eugenio Oliboni, Chiara Longo, Paolo Avanzi, Antonio Campacci, Claudio Zorzi   +7 more
doaj   +1 more source

Dual energy computed tomography virtual monoenergetic imaging: technique and clinical applications [PDF]

The British Journal of Radiology, 2019
Dual energy CT (DECT) has evolved into a commonly applied imaging technique in clinical routine due to its unique post-processing opportunities for improved evaluation of all body areas. Reconstruction of virtual monoenergetic imaging (VMI) series has shown beneficial effects for both non-contrast and contrast-enhanced DECT due to the flexibility to ...
D'Angelo, Tommaso, Cicero, Giuseppe, Mazziotti, Silvio, Ascenti, Giorgio, Albrecht, Moritz H, Martin, Simon S, Othman, Ahmed E, Vogl, Thomas J, Wichmann, Julian L   +8 more
openaire   +2 more sources

Laser acceleration of monoenergetic protons via a double layer emerging from an ultra-thin foil [PDF]

, 2009
We present theoretical and numerical studies of the acceleration of monoenergetic protons in a double layer formed by the laser irradiation of an ultra-thin film.
Shukla, Padma K., Liu, Chuan S., Shao, Xi, Sagdeev, Roald Z., Eliasson, Bengt   +4 more
core   +2 more sources

Usefulness of the advanced monoenergetic image reconstruction in dual-energy computed tomography for detecting the perforator vein of lower extremity varix

Acta Radiologica Open, 2020
Background Identification of the perforator vein is important for treating lower extremity varix. Purpose We evaluated the ability of 40-keV advanced monoenergetic images to depict the perforator vein in patients with lower extremity varix.
Hidekazu Matsumae, Motoo Nakagawa, Yoshiyuki Ozawa, Miki Asano, Masashi Shimohira, Yuta Shibamoto   +5 more
doaj   +1 more source

Imaging of hypodense gliotic lesions in photon counting computed tomography using virtual monoenergetic images. [PDF]

Neuroradiol J
Objectives Glioses appear as hypodense lesions in non-contrast CT examinations of the head. Photon counting CT (PCCT) enables the calculation of virtual monoenergetic images (VMI). The aim of this study is to investigate in which VMI hypodense gliotic lesions can be delineated best.
Schoenbeck D, Sacha A, Niehoff JH, Moenninghoff C, Borggrefe J, Kroeger JR, Michael AE.   +6 more
europepmc   +3 more sources

Virtual monoenergetic images from dual-energy CT: systematic assessment of task-based image quality performance [PDF]

Quantitative Imaging in Medicine and Surgery, 2022
Background: To compare task-based image quality (TB-IQ) among virtual monoenergetic images (VMI) and linear-blended images (LBI) from dual-energy CT as a function of contrast task, radiation dose, size, and lesion diameter. Methods: A TB-IQ phantom (Mercury Phantom 4.0, Sun Nuclear Corporation) was imaged on a third-generation dual-source dual-energy ...
Cester, Davide, Eberhard, Matthias, Alkadhi, Hatem, Euler, André   +3 more
openaire   +3 more sources