Results 31 to 40 of about 1,208,754 (253)

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

Clinical applications of photon-counting CT in neuroimaging [PDF]

Zhenduanxue lilun yu shijian
Photon-counting computed tomography (PCCT) is a next-generation CT imaging technology that markedly improves image quality while reducing radiation dose and image noise through single-photon detection and energy discrimination by photon detectors.
LÜ Haiying, LU Yong, HE Naying
doaj   +1 more source

Quantum detector tomography of a time-multiplexed superconducting nanowire single-photon detector at telecom wavelengths [PDF]

, 2013
Superconducting nanowire single-photon detectors (SNSPDs) are widely used in telecom wavelength optical quantum information science applications. Quantum detector tomography allows the positive-operator-valued measure (POVM) of a single-photon detector ...
Dorenbos, SN, Walmsley, IA, Natarajan, C.M., Zwiller, V, Walmsley, I.A. (author), Hadfield, R.H. (author), Coldenstrodt-Ronge, H, Zhang, L. (author), Zwiller, Val, Coldenstrodt-Ronge, H. (author), Natarajan, C.M. (author), Natarajan, Chandra M, Zwiller, V., Walmsley, Ian, Dorenbos, S.N. (author), Zhang, Lijian, Zhang, L., Dorenbos, S.N., Hadfield, R., Zwiller, V. (author), Donati, G. (author), Donati, Gaia, Natarajan, CM, Walmsley, Ian A., Coldenstrodt-Ronge, Hendrik, Walmsley, I.A., Hadfield, Robert H, Hadfield, R.H., Dorenbos, Sander N., Donati, G., Donati, G, Zhang, L, Hadfield, RH, Coldenstrodt-Ronge, H.   +33 more
core   +2 more sources

Tuning the Optoelectronic Properties of Wide Bandgap Perovskites: Data‐Driven Insights from Combinatorial Synthesis and High‐Throughput Experimentation

Advanced Functional Materials, EarlyView.
Combinatorial vapor deposition enables independent tuning of Cs/Pb and Br/Cl in wide‐bandgap perovskites. Automated multimodal mapping of 500+ compositions reveals a high‐energy optical transition that correlates with enhanced photoluminescence, defining a practical Cs/Pb window.
Alexander Wieczorek, Sergey Tsarev, Nathan Rodkey, Oleksandr Pshyk, Stefanie Frick, Maksym V. Kovalenko, Sebastian Siol   +6 more
wiley   +1 more source

Comparison of ultrahigh and standard resolution photon-counting CT angiography of the femoral arteries in a continuously perfused in vitro model

European Radiology Experimental, 2023
Background With the emergence of photon-counting CT, ultrahigh-resolution (UHR) imaging can be performed without dose penalty. This study aims to directly compare the image quality of UHR and standard resolution (SR) scan mode in femoral artery ...
Philipp Gruschwitz, Viktor Hartung, Süleyman Ergün, Dominik Peter, Sven Lichthardt, Henner Huflage, Robin Hendel, Pauline Pannenbecker, Anne Marie Augustin, Andreas Steven Kunz, Philipp Feldle, Thorsten Alexander Bley, Jan-Peter Grunz   +12 more
doaj   +1 more source

Enlarged cerebrospinal fluid spaces in opiate-dependent male patients: A stereological CT study [PDF]

, 1998
Computed tomography was performed in 9 male patients with a diagnosis of opiate dependence and in 9 age-matched psychiatric controls (neurotic depression).
Van Roost, Dirk, Kasper, Siegfried, Brömel, Thomas, Solymosi, Lazslo, Solymosi, László, Broich, Karl, Krappel, Christian, Van Roos, Dirk, Möller, Hans-Jürgen, Danos, Peter   +9 more
core   +1 more source

Spectral Photon-Counting CT Technology in Chest Imaging

, 2021
International audienceThe X-ray imaging field is currently undergoing a period of rapid technological innovation in diagnostic imaging equipment. An important recent development is the advent of new X-ray detectors, i.e., photon-counting detectors (PCD),
Rodesch, Pierre-Antoine, Jade Miailhes, Sara Boccalini, Loic Boussel, Boccalini, Sara, Boussel, Loic, Cottin, Vincent, Hugo Lacombe, Salim Aymeric Si-Mohamed, Si-Mohamed, Salim Aymeric, Miailhes, Jade, Leitman, Valérie, Vincent Cottin, Pierre-Antoine Rodesch, Lacombe, Hugo, Douek, Philippe, Valérie Leitman, Philippe Douek   +17 more
core   +1 more source

High‐Efficiency Deep Blue Single‐Gaussian Europium(II) Emitters and Their Emitter‐Host Interactions

Advanced Functional Materials, EarlyView.
Crown‐ether ligands and carborate anions enable vacuum‐processable Eu(II) emitters with efficient single‐Gaussian deep‐blue luminescence. Combined photophysical and computational analyses reveal that excited‐electron confinement and steric shielding of the europium center jointly govern compatibility with OLED host materials, establishing molecular ...
Mahmoud Soleimani, Paulius Imbrasas, Jan‐Michael Mewes, Felix Kaden, Stephanie Anna Buchholtz, Karl Leo, Sebastian Schellhammer, Carsten Rothe, Sebastian Reineke   +8 more
wiley   +1 more source

Calculation of Stopping-Power Ratio from Multiple CT Numbers Using Photon-Counting CT System: Two- and Three-Parameter-Fitting Method

Sensors, 2021
The two-parameter-fitting method (PFM) is commonly used to calculate the stopping-power ratio (SPR). This study proposes a new formalism: a three-PFM, which can be used in multiple spectral computed tomography (CT).
Sung Hyun Lee, Naoki Sunaguchi, Akie Nagao, Yoshiyuki Hirano, Hiroshi Sakurai, Yosuke Kano, Masami Torikoshi, Tatsuaki Kanai, Mutsumi Tashiro   +8 more
doaj   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source