Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Dirk Beque"'
Autor:
Lana Kambeitz-Ilankovic, Raimo K. R. Salokangas, Dominic B. Dwyer, Nikolaos Koutsouleris, Dirk Beque, Stefan Borgwardt, Christos Pantelis, Anita Riecher-Rössler, André Schmidt, Paolo Brambilla, Stephen J. Wood, Eva Meisenzahl, John E. Gillam, Katharine Chisholm, Jarmo Hietala, Anne Ruef, Marco Paolini, Stephan Ruhrmann, Joseph Kambeitz, Frauke Schultze-Lutter, Marlene Rosen, Maximilian F. Reiser, Rachel Upthegrove, Peter Falkai, Theresa Haidl
Publikováno v:
JAMA Psychiatry. 75(11):1156-1172
Importance Social and occupational impairments contribute to the burden of psychosis and depression. There is a need for risk stratification tools to inform personalized functional-disability preventive strategies for individuals in at-risk and early
Autor:
Dirk Beque, Anikó Sztrókay-Gaul, Cristina Cozzini, Jonathan I. Sperl, Tobias Benz, Karin Hellerhoff, Susanne Grandl, Eduardo Coello, Franz Pfeiffer, Julia Herzen, Kai Scherer
Publikováno v:
European journal of radiology. 89
X-Ray Phase-Contrast (XPC) imaging is a novel technology with a great potential for applications in clinical practice, with breast imaging being of special interest. This work introduces an intuitive methodology to combine and visualize relevant diag
Autor:
Franz Pfeiffer, Marian Willner, Cristina Cozzini, Jonathan I. Sperl, Karin Hellerhoff, Lukas B. Gromann, Kai Scherer, Julia Herzen, Lorenz Birnbacher, Dirk Beque, Konstantin Willer, Susanne Grandl
Differential phase-contrast X-ray imaging using a Talbot-Lau interferometer has recently shown promising results for applications in medical imaging. However, reducing the applied radiation dose remains a major challenge. In this study, we consider t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0c684af251d2aa4e815afa04a92b8c2
https://europepmc.org/articles/PMC4771456/
https://europepmc.org/articles/PMC4771456/
Autor:
Michael Chabior, Dirk Beque, Franz Pfeiffer, Markus Schüttler, Johannes Wolf, Andreas Malecki, Cristina Cozzini, Jonathan I. Sperl
Numerical wave-optical simulations of X-ray differential phase-contrast imaging using grating interferometry require the oversampling of gratings and object structures in the range of few micrometers. Consequently, fields of view of few millimeters a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8bc1be325ca80ddf6218106af0355b6
https://europepmc.org/articles/PMC4206338/
https://europepmc.org/articles/PMC4206338/
Autor:
Michael Chabior, Dirk Beque, Franz Pfeiffer, Andreas Malecki, Cristina Cozzini, Jonathan I. Sperl, Johannes Wolf
Publikováno v:
SPIE Proceedings.
X-ray phase-contrast and dark-field imaging are two new modalities that have great potential for applications in different fields like medical diagnostics or materials science. The use of grating interferometers allows the detection of both different
Autor:
Guido Peter Kudielka, Kinan Mahdi, Dirk Beque, Peter Michael Edic, Cristina Cozzini, Jonathan I. Sperl
Publikováno v:
Optics express. 22(1)
Phase retrieval in differential X-ray phase contrast imaging involves a one dimensional integration step. In the presence of noise, standard integration methods result in image blurring and streak artifacts. This work proposes a regularized integrati
Publikováno v:
2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC).
An X-ray phase contrast grating interferometer consists of three gratings in the beam line to generate interference patterns and acquire phase shift information if an object is placed into the beam. These gratings have a pitch of a few micrometers an
Autor:
Cristina Cozzini, Geoffrey Harding, Peter Michael Edic, Dirk Beque, H. Strecker, Dirk Kosciesza, Yanfeng Du
Publikováno v:
IEEE Nuclear Science Symposuim & Medical Imaging Conference.
Energy dispersive X-ray diffraction (EDXRD) is a very effective method for explosive and narcotic threat detection in baggage screening. The XRD profiles arise from the molecular interference when X-rays are coherently scattered by a substance. The a
Publikováno v:
IEEE Nuclear Science Symposuim & Medical Imaging Conference.
High temporal resolution and high spatial resolution are required to image the coronary arteries without motion artifacts. Several approaches have been pursued to achieve better temporal resolution including faster rotational speeds, and dual tube sy
Autor:
Dirk Beque, Jonathan I. Sperl, M. Brokate, Bernhard Erich Herrmann Claus, B. De Man, Bob Senzig
Publikováno v:
IEEE transactions on medical imaging. 29(3)
X-ray computed tomography is a powerful medical imaging device. It allows high-resolution 3-D visualization of the human body. However, one drawback is the health risk associated with ionizing radiation. Simply downscaling the radiation intensities o