Results 21 to 30 of about 1,646,093 (289)

Advantages of Photon-Counting Detector CT in Aortic Imaging

Tomography, 2023
Photon-counting Computed Tomography (PCCT) is a promising imaging technique. Using detectors that count the number and energy of photons in multiple bins, PCCT offers several advantages over conventional CT, including a higher image quality, reduced ...
Chiara Zanon, Filippo Cademartiri, Alessandro Toniolo, Costanza Bini, Alberto Clemente, Elda Chiara Colacchio, Giulio Cabrelle, Florinda Mastro, Michele Antonello, Emilio Quaia, Alessia Pepe   +10 more
doaj   +1 more source

An introduction to photon-counting detector CT (PCD CT) for radiologists

Japanese Journal of Radiology, 2022
The basic performance of photon-counting detector computed tomography (PCD CT) is superior to conventional CT (energy-integrating detector CT: EID CT) because its spatial- and contrast resolution of soft tissues is higher, and artifacts are reduced ...
Yuko Nakamura, T. Higaki, Shota Kondo, I. Kawashita, Isao Takahashi, K. Awai   +5 more
semanticscholar   +1 more source

Linac-integrated on-board spectral-CT/CBCT imaging using a photon-counting detector: a Monte Carlo study

Frontiers in Physics, 2023
Purpose: To investigate the feasibility of dual-modal on-board spectral-CT/CBCT imaging using a CZT photon-counting detector mounted on a Linac by Monte Carlo simulations.Methods: In this proof-of-concept study, the Monte Carlo software platform of ...
Fengsong Ye, Hui Wang, Jianqiang Fang
doaj   +1 more source

Bone Mineral Density Quantification from Localizer Radiographs: Accuracy and Precision of Energy-integrating Detector CT and Photon-counting Detector CT [PDF]

, 2021
Background Bone mineral density (BMD) could be derived from CT localizer radiographs and could potentially enable opportunistic osteoporosis screening.
Saltybaeva, Natalia, Euler, André; https://orcid.org/, Distler, Oliver; https://orcid.org/, Nowak, Tristan; https://orcid.org/, Alkadhi, Hatem; https://orcid.org/, Schmidt, Bernhard, Eberhard, Matthias; https://orcid.org/, Frey, Diana; https://orcid.org/   +7 more
core   +1 more source

Image Denoising and Ring Artifacts Removal for Spectral CT via Deep Neural Network

IEEE Access, 2020
The spectral computed tomography (CT) based on photon counting detectors can collect the incident photons with different energy ranges. However, due to the low photon counts in narrow energy bin and the unhomogeneous response problem of detector cells ...
Xiaojie Lv, Xuezhi Ren, Peng He, Mi Zhou, Zourong Long, Xiaodong Guo, Chengyu Fan, Biao Wei, Peng Feng   +8 more
doaj   +1 more source

Evaluation of the ear ossicles with photon-counting detector CT [PDF]

, 2023
Recently, computed tomography with photon-counting detector (PCD-CT) has been developed to enable high-resolution imaging at a lower radiation dose. PCD-CT employs a photon-counting detector that can measure the number of incident X-ray photons and their
Fumiyo Higaki, Katsuhide Kojima, Noriaki Akagi, Sugaya, Akiko, Matsui, Yusuke, Yuka Takahashi, Toshihide Itoh, Kojima, Katsuhide, Akagi, Noriaki, Yudai Asano, Asano, Yudai, Takao Hiraki, Hiraki, Takao, Akiko Sugaya, Yusuke Matsui, Higaki, Fumiyo, Morimitsu, Yusuke, Takahashi, Yuka, Yusuke Morimitsu, Itoh, Toshihide   +19 more
core   +1 more source

Cardiac imaging with photon counting CT [PDF]

, 2023
CT of the heart, in particular ECG-controlled coronary CT angiography (cCTA), has become clinical routine due to rapid technical progress with ever new generations of CT equipment.
Flohr, Thomas; https://orcid.org/, Alkadhi, Hatem; https://orcid.org/, Schmidt, Bernhard, Ulzheimer, Stefan   +3 more
core   +1 more source

Clinical Applications of Photon Counting Detector CT

European Radiology, 2023
The X-ray detector is a fundamental component of a CT system that determines the image quality and dose efficiency. Until the approval of the first clinical photon-counting-detector (PCD) system in 2021, all clinical CT scanners used scintillating ...
C. McCollough, K. Rajendran, Francis I. Baffour, F. Diehn, A. Ferrero, K. Glazebrook, K. Horst, Tucker F. Johnson, S. Leng, A. Mileto, P. Rajiah, B. Schmidt, Li-Feng Yu, T. Flohr, J. Fletcher   +14 more
semanticscholar   +1 more source

Ultrahigh resolution whole body photon counting computed tomography as a novel versatile tool for translational research from mouse to man

Zeitschrift für Medizinische Physik, 2023
X-ray computed tomography (CT) is a cardinal tool in clinical practice. It provides cross-sectional images within seconds. The recent introduction of clinical photon-counting CT allowed for an increase in spatial resolution by more than a factor of two ...
Eckhard Wehrse, Laura Klein, Lukas Thomas Rotkopf, Wolfram Stiller, M. Finke, Gernot G. Echner, Christin Glowa, Sarah Heinze, Christian Herbert Ziener, Heinz Peter Schlemmer, Marc Kachelrieß, Stefan Sawall   +11 more
doaj   +1 more source

A New Frontier in Temporal Bone Imaging: Photon-Counting Detector CT Demonstrates Superior Visualization of Critical Anatomic Structures at Reduced Radiation Dose

American Journal of Neuroradiology, 2022
Temporal bone CT images obtained on a photon-counting detector CT scanner were rated as having superior spatial resolution and more critical structure visualization than those obtained on a conventional energy-integrating detector scanner, even with a ...
J. C. Benson, K. Rajendran, J. Lane, F. Diehn, N. Weber, J. Thorne, N. Larson, J. G. Fletcher, C. H. McCollough, S. Leng   +9 more
semanticscholar   +1 more source