Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Johann Drexl"'
Autor:
Thomas Wehrum, Iulius Dragonu, Christoph Strecker, Florian Schuchardt, Anja Hennemuth, Johann Drexl, Thomas Reinhard, Daniel Böhringer, Werner Vach, Jürgen Hennig, Andreas Harloff
Publikováno v:
Journal of Cardiovascular Magnetic Resonance, Vol 19, Iss 1, Pp 1-9 (2017)
Abstract Background It was our purpose to identify vulnerable plaques in the thoracic aorta using 3D multi-contrast CMR and estimate the risk of cerebral embolization using 4D flow CMR in cryptogenic stroke patients and controls. Methods One hundred
Externí odkaz:
https://doaj.org/article/74dfd3f2c0f9433fa339cff8ff9cbb04
Publikováno v:
The International Journal of Cardiovascular Imaging. 30:1571-1577
To test if new software accelerates analysis of in vivo acquired 4D flow MRI data. Respiration-gated and ECG-synchronized 4D flow MRI of the aorta was performed in 20 stroke patients using a routine 3-Tesla MRI system (TIMTRIO, Siemens, Germany). 3D
Autor:
Martin Schumacher, Bernd Jung, Anja Hennemuth, Christoph Strecker, Miriam Kams, Andreas Harloff, Annette Geibel, Thomas Wehrum, Johann Drexl, Iulius Dragonu, Felix Günther
Publikováno v:
Wehrum, Thomas; Kams, Miriam; Strecker, Christoph; Dragonu, Iulius; Günther, Felix; Geibel, Annette; Drexl, Johann; Hennemuth, Anja; Schumacher, Martin; Jung, Bernd; Harloff, Andreas (2014). Prevalence of potential retrograde embolization pathways in the proximal descending aorta in stroke patients and controls. Cerebrovascular diseases, 38(6), pp. 410-417. Karger 10.1159/000369001
Background: Retrograde diastolic blood flow in the proximal descending aorta (DAo) connecting complex plaques (≥4 mm thick) with brain-supplying supra-aortic arteries may constitute a source of stroke. Yet, data only from high-risk populations (cry
Autor:
T Oechtering, Hans-Hinrich Sievers, Malte Maria Sieren, Anja Hennemuth, Michael Scharfschwerdt, Carl F. Hons, Johann Drexl, Peter Hunold, Jörg Barkhausen, Markus Huellebrand, Doreen Richardt, Alex Frydrychowicz
Objective The anatomically shaped sinus prosthesis (Uni-Graft W SINUS; Braun, Melsungen, Germany) used in valve-sparing aortic root replacement promises physiological hemodynamics believed to grant physiologic valve function. Using time-resolved 3-di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4b30cabaf532f2a2f18c804f8eecfe1
https://publica.fraunhofer.de/handle/publica/245223
https://publica.fraunhofer.de/handle/publica/245223
Autor:
Silke Walter, Chang-Yue Gao, Joan Martí-Fàbregas, Jaume Roquer, Laura Jastrzab, Talia R. Seider, Brianne M. Bettcher, Andreas Ragoschke-Schumm, Luis San Roman, Mira Katan, Annette Geibel, Yang Liu, Martin Lesmeister, Xabier Urra, Pere Cardona, Andreas Fellgiebel, Yun Liu, Joan Montaner, Beth Baca, Charles E. McCulloch, Anja Hennemuth, Robert J. Desnick, Shao-Qiong Liao, Steven R. Levine, David Cánovas, Ludmila Pawlikowska, Li-Li Zhang, Joel H. Kramer, Martin Schumacher, Ming-Jie Zhang, Christoph Strecker, Rebecca Senn, Armin Scheurich, Wendy J. Mack, Linda Chao, Mónica Millán, Leslie Morrison, Bing-Hu Li, Amy Akers, Jeffrey Nelson, Druckerei Stückle, Miriam Kams, Stefan Helwig, Kerstin Wildberger, Sònia Abilleira, Andreas Harloff, Jing-Cheng Li, Yan-Wei Yin, Mirjam Christ-Crain, Mitchell S.V. Elkind, Helen Kim, Thomas Wehrum, Charles DeCarli, Francisco Gil, Martin Dietrich, Helena C. Chui, Clotilde Balucani, Martin Gartenschläger, Ángel Chamorro, Bernd Jung, Bruce R Reed, Anton Haass, Felix Günther, Johann Drexl, Blaine L. Hart, Yasir Khan, Satz Mengensatzproduktion, Zi-Cheng Hu, Michael W. Weiner, Marc Ribó, Hans-Morten Lossius, Iulius Dragonu, Katherine B. Sims, Klaus Fassbender, Dan M Mungas, Darvis T. Frazier, H l ne Choquet
Publikováno v:
Cerebrovascular Diseases. 38
Autor:
José M. Valdueza, Jochen Bäuerle, Laure Schroeder, Anja Hennemuth, Constantin Anastasopoulos, Florian Schuchardt, Irina Mader, Johann Drexl, Andreas Harloff, Michael Markl
To visualize and quantify physiological blood flow of intracranial veins in vivo using time-resolved, 3D phase-contrast MRI (4D flow MRI), and to test measurement accuracy. Fifteen healthy volunteers underwent repeated ECG-triggered 4D flow MRI (3 Te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75f697851cec6291169cd864a52864c7
https://publica.fraunhofer.de/handle/publica/239306
https://publica.fraunhofer.de/handle/publica/239306
Autor:
Achim Gössler, Peter Dr.rer.nat. Heinlein, Siegfried Dipl.-Phys. Janssen, Wilfried Schneider, Johann Drexl
Publikováno v:
CARS
This paper presents new techniques for the enhancement and detection of clustered microcalcifications in mammograms. They allow the integration of different existing mammographic imaging devices such as film or direct digital mammography. Using a wav
Autor:
Bernd Hamm, Wilfried Schneider, Peter Dr.rer.nat. Heinlein, Johann Drexl, Felix Diekmann, S. Grebe, Achim Gössler
Publikováno v:
CARS
Purpose : A method is presented for visualizing microcalcifications by full-field mammography using wavelet frames, an enhancement operator, and a suitable reconstruction technique. Material and methods : The computer algorithm is tested on 24 digita
Publikováno v:
Statistical Atlases and Computational Models of the Heart. Imaging and Modelling Challenges ISBN: 9783642369605
STACOM
STACOM
Noninvasive blood flow measurements by 4D flow-sensitive MRI can be used to compute the intravascular distribution of blood pressure. In this work, we present an efficient algorithm for this task, based on the Navier-Stokes equations including zero-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec480e44a9b560b9788d19d8b70e5918
https://doi.org/10.1007/978-3-642-36961-2_25
https://doi.org/10.1007/978-3-642-36961-2_25
Autor:
Horst K. Hahn, Haider Adnan Khan, Sebastian Meier, Anja Hennemuth, Michael Markl, Johann Drexl, Ramona Lorenz
Publikováno v:
Functional Imaging and Modeling of the Heart ISBN: 9783642388989
FIMH
FIMH
We present the Adaptive Vector Pattern Matching (AVPM) method, a novel method for the detection of vortical structures specifically designed for velocity encoded 4D PCMRI datasets. AVPM is based on vector pattern matching combined with robust orienta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b28b53438032bb5f526ccab8db0d7e29
https://doi.org/10.1007/978-3-642-38899-6_33
https://doi.org/10.1007/978-3-642-38899-6_33