Zobrazeno 1 - 10
of 264
pro vyhledávání: '"photon-counting detector CT"'
Autor:
Dirk Graafen, Willi Bart, Moritz C. Halfmann, Lukas Müller, Lukas Hobohm, Yang Yang, Achim Neufang, Christine Espinola-Klein, Michael B. Pitton, Roman Kloeckner, Akos Varga-Szemes, Tilman Emrich
Publikováno v:
European Radiology Experimental, Vol 8, Iss 1, Pp 1-14 (2024)
Abstract Background Lower extremity peripheral artery disease frequently presents with calcifications which reduces the accuracy of computed tomography (CT) angiography, especially below-the-knee. Photon-counting detector (PCD)-CT offers improved spa
Externí odkaz:
https://doaj.org/article/8afa76a007d34c7c8ae8588f68623c04
Autor:
Shunsuke Shibata, Misugi Urano, Nobuo Kitera, Haruka Noda, Shuntaro Isogai, Wenya Zhao, Toshihide Itoh, Tatsuya Kawai, Akio Hiwatashi
Publikováno v:
Radiology Case Reports, Vol 19, Iss 11, Pp 4721-4724 (2024)
A 77-year-old woman presented to our hospital with a 2-week history of fever, headache, and induration along the bilateral superficial temporal arteries (STAs). The color Doppler ultrasonography of the STA showed a hypoechoic mural thickening surroun
Externí odkaz:
https://doaj.org/article/0ebf5440e4294ffe891579a9e6e69ce5
Autor:
Hanns Leonhard Kaatsch, Maximilian Franz Völlmecke, Benjamin V. Becker, Daniel Dillinger, Laura Kubitscheck, Aliona Wöhler, Sebastian Schaaf, Joel Piechotka, Christof Schreyer, Robert Schwab, Daniel Overhoff, Stephan Waldeck
Publikováno v:
Diagnostics, Vol 14, Iss 19, p 2231 (2024)
Objectives: To evaluate the value of virtual monoenergetic images (VMI) from photon-counting detector CT (PCD-CT) for discriminability of severe lung injury and atelectasis in polytraumatized patients. Materials & Methods: Contrast-enhanced PCD-CT ex
Externí odkaz:
https://doaj.org/article/85e68cfab42c411d8acdb5957381b438
Autor:
Victor Mergen, Stéphane Rusek, Filippo Civaia, Philippe Rossi, Rengarajan Rajagopal, Eduardo Bättig, Robert Manka, Alessandro Candreva, Matthias Eberhard, Hatem Alkadhi
Publikováno v:
Frontiers in Cardiovascular Medicine, Vol 11 (2024)
PurposeTo 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 angi
Externí odkaz:
https://doaj.org/article/9e92fb261843431abbe19085074bc562
Autor:
Dirk Graafen, Fabian Stoehr, Moritz C. Halfmann, Tilman Emrich, Friedrich Foerster, Yang Yang, Christoph Düber, Lukas Müller, Roman Kloeckner
Publikováno v:
Cancer Imaging, Vol 23, Iss 1, Pp 1-10 (2023)
Abstract Background Excellent image quality is crucial for workup of hepatocellular carcinoma (HCC) in patients with liver cirrhosis because a signature tumor signal allows for non-invasive diagnosis without histologic proof. Photon-counting detector
Externí odkaz:
https://doaj.org/article/4b0d13ba3891493ca182a3609543e5aa
Publikováno v:
Journal of Cardiovascular Development and Disease, Vol 11, Iss 4, p 127 (2024)
Photon-counting detector computed tomography (PCD-CT) represents a revolutionary new generation of computed tomography (CT) for the imaging of patients with cardiovascular diseases. Since its commercial market introduction in 2021, numerous studies h
Externí odkaz:
https://doaj.org/article/ecbcc96f06bf44aaae9c52099e587fac
Autor:
Daniel Dillinger, Daniel Overhoff, Matthias F. Froelich, Hanns L. Kaatsch, Christian Booz, Achim Hagen, Thomas J. Vogl, Stefan O. Schönberg, Stephan Waldeck
Publikováno v:
Diagnostics, Vol 14, Iss 6, p 626 (2024)
Objectives: The aim of this study was to analyze the extent of dental metal artifacts in virtual monoenergetic (VME) images, as they often compromise image quality by obscuring soft tissue affecting vascular attenuation reducing sensitivity in the de
Externí odkaz:
https://doaj.org/article/14318f782540459181466a22502b54f4
Autor:
Jan-Lucca Hennes, Henner Huflage, Jan-Peter Grunz, Viktor Hartung, Anne Marie Augustin, Theresa Sophie Patzer, Pauline Pannenbecker, Bernhard Petritsch, Thorsten Alexander Bley, Philipp Gruschwitz
Publikováno v:
Diagnostics, Vol 13, Iss 24, p 3645 (2023)
This retrospective study aims to provide an intra-individual comparison of aortic CT angiographies (CTAs) using first-generation photon-counting-detector CT (PCD-CT) and third-generation energy-integrating-detector CT (EID-CT). High-pitch CTAs were p
Externí odkaz:
https://doaj.org/article/a21e24b350704c5a9b14879fcfb562ba
Autor:
Dirk Graafen, Moritz C. Halfmann, Tilman Emrich, Yang Yang, Michael Kreuter, Christoph Düber, Roman Kloeckner, Lukas Müller, Tobias Jorg
Publikováno v:
Diagnostics, Vol 13, Iss 23, p 3522 (2023)
Photon-counting detector computed tomography (PCD-CT) yields improved spatial resolution. The combined use of PCD-CT and a modern iterative reconstruction method, known as quantum iterative reconstruction (QIR), has the potential to significantly imp
Externí odkaz:
https://doaj.org/article/21a6854e7ecf47aebb67ac26789d85df
Autor:
Franziska M. Braun, Franka Risch, Josua A. Decker, Piotr Woźnicki, Stefanie Bette, Judith Becker, Katharina Rippel, Christian Scheurig-Münkler, Thomas J. Kröncke, Florian Schwarz
Publikováno v:
Diagnostics, Vol 13, Iss 22, p 3402 (2023)
In photon-counting detector CT (PCD-CT), coronary artery calcium scoring (CACS) can be performed using virtual non-contrast (VNC) series derived from coronary CT angiography (CCTA) datasets. Our study analyzed image characteristics of VNC series in t
Externí odkaz:
https://doaj.org/article/14176d44b98b4666bd5ebc36510a87b3