Results 91 to 100 of about 31,457 (170)

Impact of reconstruction parameters on the accuracy of myocardial extracellular volume quantification on a first-generation, photon-counting detector CT

European Radiology Experimental
Background The potential role of cardiac computed tomography (CT) has increasingly been demonstrated for the assessment of diffuse myocardial fibrosis through the quantification of extracellular volume (ECV).
Chiara Gnasso, Daniel Pinos, U. Joseph Schoepf, Milan Vecsey-Nagy, Gilberto J. Aquino, Nicola Fink, Emese Zsarnoczay, Robert J. Holtackers, Jonathan Stock, Pal Suranyi, Akos Varga-Szemes, Tilman Emrich   +11 more
doaj   +1 more source

Low-Rank Tensor Train and Self-Similarity Based Spectral CT Reconstruction

IEEE Access
Spectral computed tomography (CT) has a wide range of applications in material discrimination, clinical diagnosis and tissue representation. However, the photon counting detector measurements are subject to serious quantum noise caused by photon ...
Jie Guo, Xiaohuan Yu, Shaoyu Wang, Ailong Cai, Zhizhong Zheng, Ningning Liang, Lei Li, Bin Yan   +7 more
doaj   +1 more source

In vitro and in vivo optimized reconstruction for low-keV virtual monoenergetic photon-counting detector CT angiography of lower legs

European Radiology Experimental
Background Lower extremity peripheral artery disease frequently presents with calcifications which reduces the accuracy of computed tomography (CT) angiography, especially below-the-knee.
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   +11 more
doaj   +1 more source

Quantum state and detector tomography with known rank

IFAC-PapersOnLine, 2023
Shuixin Xiao, Yuanlong Wang, Jun Zhang, Daoyi Dong, Hidehiro Yonezawa   +4 more
openaire   +1 more source

Exploring NbTiN superconducting single photon detectors with quantum detector tomography

, 2019
The optical response of NbTiN superconducting single photon detectors is studied using quantum detector tomography which separates the detector response in single and multiple photon contributions. Three different NbTiN nanodetectors of 70, 100 and 150 nm width are compared based on their detector tomography curves. The energy dependent photon response
openaire   +1 more source

Design and characterization of wideband balanced homodyne detectors for quantum homodyne tomography

, 2012
This thesis reports the realization and applications of a versatile wideband balanced homodyne detector operating in the time domain and intended for Quantum Optical Tomography. The detector can work with high repetition rate lasers used for the production and measurement of the electric field quadratures of quantum states of light.
openaire   +2 more sources

Time-resolved certification of frequency-bin entanglement over multi-mode channels. [PDF]

npj Quantum Inf
Vinet S, Clementi M, Bacchi M, Zhang Y, Giacomin M, Neal L, Villoresi P, Galli M, Bajoni D, Jennewein T.   +9 more
europepmc   +1 more source

Ultra-dense lutetium oxide ceramic scintillators for positron emission tomography. [PDF]

Phys Med Biol
Hamato A, Lee D, Ota R, Hemmati H, Muller M, Wang Y, Pandian LS, Kim S, Yamaya T, Cherry SR, Glodo J, Kwon SI.   +11 more
europepmc   +1 more source

Superconducting nanowire single-photon detectors for enhanced biomedical imaging. [PDF]

J Biomed Opt
Hughes ECV, Upadhya A, Dholakia K.
europepmc   +1 more source

Intraindividual comparison of photon-counting detector CT and third-generation dual-source energy-integrating detector CT in multiphasic contrast-enhanced abdominal CT. [PDF]

Sci Rep
Sofue K, Nishiuchi K, Ishikawa K, Ueno Y, Negi N, Umeno A, Kozuki R, Yamaguchi T, Ueshima E, Tsuboyama T, Imaoka I, Murakami T.   +11 more
europepmc   +1 more source