Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Marcel Gratz"'
Publikováno v:
PLoS ONE, Vol 15, Iss 6, p e0233209 (2020)
The impact of a method for MR-based respiratory motion correction of PET data on lesion visibility and quantification in patients with oncologic findings in the lung was evaluated. Twenty patients with one or more lesions in the lung were included. H
Externí odkaz:
https://doaj.org/article/b5728c217ed44e769d961aa96d087e22
Autor:
Thomas Michael Ernst, Anna Evelina Brol, Marcel Gratz, Christoph Ritter, Ulrike Bingel, Marc Schlamann, Stefan Maderwald, Harald H Quick, Christian Josef Merz, Dagmar Timmann
Publikováno v:
eLife, Vol 8 (2019)
Prediction errors are thought to drive associative fear learning. Surprisingly little is known about the possible contribution of the cerebellum. To address this question, healthy participants underwent a differential fear conditioning paradigm durin
Externí odkaz:
https://doaj.org/article/30761d716c7145b3aa0e53a6a95f0c35
Autor:
Stephan Orzada, Klaus Solbach, Marcel Gratz, Sascha Brunheim, Thomas M Fiedler, Sören Johst, Andreas K Bitz, Samaneh Shooshtary, Ashraf Abuelhaija, Maximilian N Voelker, Stefan H G Rietsch, Oliver Kraff, Stefan Maderwald, Martina Flöser, Mark Oehmigen, Harald H Quick, Mark E Ladd
Publikováno v:
PLoS ONE, Vol 14, Iss 9, p e0222452 (2019)
PurposeA 32-channel parallel transmit (pTx) add-on for 7 Tesla whole-body imaging is presented. First results are shown for phantom and in-vivo imaging.MethodsThe add-on system consists of a large number of hardware components, including modulators,
Externí odkaz:
https://doaj.org/article/96d260877d3d427493ea3fe92a1182c9
Autor:
Stephan Orzada, Andreas K. Bitz, Sören Johst, Marcel Gratz, Maximilian N. Völker, Oliver Kraff, Ashraf Abuelhaija, Thomas M. Fiedler, Klaus Solbach, Harald H. Quick, Mark E. Ladd
Publikováno v:
Frontiers in Physics, Vol 5 (2017)
Object: In this work an 8-channel array integrated into the gap between the gradient coil and bore liner of a 7-Tesla whole-body magnet is presented that would allow a workflow closer to that of systems at lower magnetic fields that have a built-in b
Externí odkaz:
https://doaj.org/article/1d05c7d0321f4b5ea62fc78aaf5e59ec
Autor:
Johannes Grueneisen, Karsten Beiderwellen, Philipp Heusch, Paul Buderath, Bahriye Aktas, Marcel Gratz, Michael Forsting, Thomas Lauenstein, Verena Ruhlmann, Lale Umutlu
Publikováno v:
PLoS ONE, Vol 9, Iss 5, p e96751 (2014)
BACKGROUND: To evaluate a potential correlation of the maximum standard uptake value (SUVmax) and the minimum apparent diffusion coefficient (ADCmin) in primary and recurrent cervical cancer based on integrated PET/MRI examinations. METHODS: 19 conse
Externí odkaz:
https://doaj.org/article/eaaef945b0324c619b80b0ecd89159bd
Publikováno v:
Medical Physics. 49:865-877
Purpose Truncation artifacts in the periphery of the magnetic resonance (MR) field-of-view (FOV) and thus, in the MR-based attenuation correction (AC) map, may hamper accurate positron emission tomography (PET) quantification in whole-body PET/MR, wh
Autor:
Gurbandurdy Dovletov, Utku Karadeniz, Stefan Lörcks, Josef Pauli, Marcel Gratz, Harald H. Quick
Publikováno v:
Image Analysis ISBN: 9783031314377
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7849617d79f1aa37bec8cbd54d11b8ba
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85161381117
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85161381117
Autor:
Gurbandurdy Dovletov, Duc Duy Pham, Stefan Lorcks, Josef Pauli, Marcel Gratz, Harald H. Quick
In this paper, we address the task of image-to-image translation from MRI to CT domain. We propose a 2D U-Net-based deep learning approach for pseudo-CT synthesis that incorporates an additional Grad-CAM guided attention mechanism for superior image
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a58da4e994e19171c9a123971e7a180
https://www.ncbi.nlm.nih.gov/pubmed/36086041
https://www.ncbi.nlm.nih.gov/pubmed/36086041
In this paper, we propose 2D MRI-based pseudo-CT (pCT) generation approaches that are inspired by U-Net and generative adversarial networks (GANs) and that additionally utilize coarse bone segmentation guided attention (SGA) mechanisms for better ima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4966955e268aa738eb1b7103f0e00ee6
Autor:
Mark A. Griswold, Vikas Gulani, Ulrich Sure, Martin Glas, Karsten H. Wrede, Stephan Kannengiesser, Lale Umutlu, Ken Herrmann, Kathy Keyvani, Mathias Nittka, Aydin Demircioglu, Marcel Gratz, Gerald Antoch, Felix Nensa, Johannes Haubold, Michael Forsting
Publikováno v:
European Journal of Nuclear Medicine and Molecular Imaging. 47:1435-1445
The introduction of the 2016 WHO classification of CNS tumors has made the combined molecular and histopathological characterization of tumors a pivotal part of glioma patient management. Recent publications on radiogenomics-based prediction of the m