Zobrazeno 1 - 10
of 39
pro vyhledávání: '"M. R. Symms"'
Autor:
Kamil Jonak, Katarzyna E. Jonak, Mansur Rahnama-Hezavah, Anna Niedziałek, Michał Toborek, Hanna Karakuła-Juchnowicz, Paweł Krukow, Arkadiusz Podkowiński, Cezary Grochowski, Andrzej Stępniewski, M R Symms
Publikováno v:
Neuroscience. 455:128-140
Examining individuals with Leber's hereditary optic neuropathy (LHON) provides a rare opportunity to understand how changes in mitochondrial DNA and loss of vision can be related to changes in organization of the whole-brain structural network archit
Autor:
M R Symms, Michela Tosetti, Alessandra Retico, Eddy B. Boskamp, Francesca Maggiorelli, Fraser Robb, Gianluigi Tiberi
Publikováno v:
Applied Magnetic Resonance. 50:649-661
Magnetic Resonance Imaging (MRI) and Spectroscopy (MRS) with nuclei other than protons (X-nuclei) often require the acquisition of proton signal for shimming and co-registration procedures. Double-Tuned Radio Frequency (DT-RF) coils improve these pro
Autor:
Katarzyna E. Jonak, M R Symms, Kamil Jonak, Arkadiusz Podkowiński, Andrzej Stępniewski, Ida Osuchowska, Cezary Grochowski, Jacek Baj, Anna Niedziałek, Elżbieta Radzikowska, Paweł Krukow, Anna Pankowska
Publikováno v:
Journal of Clinical Medicine, Vol 9, Iss 2914, p 2914 (2020)
Journal of Clinical Medicine
Volume 9
Issue 9
Journal of Clinical Medicine
Volume 9
Issue 9
Leber&rsquo
s hereditary optic neuropathy (LHON) is a maternally inherited genetic disorder leading to severe and bilateral loss of central vision, with a young male predilection. In recent years, multiple studies examined structural abnormaliti
s hereditary optic neuropathy (LHON) is a maternally inherited genetic disorder leading to severe and bilateral loss of central vision, with a young male predilection. In recent years, multiple studies examined structural abnormaliti
Autor:
Tomasz Żarnowski, Ewa Kosior-Jarecka, Anna Pankowska, M R Symms, Piotr Polit, Radosław Pietura, Andrzej Stępniewski, Paulina Kozioł
Publikováno v:
Journal of Clinical Medicine
Volume 9
Issue 8
Journal of Clinical Medicine, Vol 9, Iss 2382, p 2382 (2020)
Volume 9
Issue 8
Journal of Clinical Medicine, Vol 9, Iss 2382, p 2382 (2020)
The aim of the study was to assess the volume of the lateral geniculate nucleus (LGN) in patients with open-angle glaucoma in 7Tesla MRI and to evaluate its relation to RNFL thickness and VF indices. Material and methods. The studied group consisted
Autor:
Cezary Grochowski, Emil Ljungberg, Joaquim Enseñat, Gareth J. Barker, Ryszard Maciejewski, Paweł Krukow, Kamil Jonak, M R Symms, Tobias C. Wood, Robert Rejdak, Katarzyna Nowomiejska
Publikováno v:
Journal of Clinical Medicine
Volume 9
Issue 4
Dipòsit Digital de la UB
Universidad de Barcelona
Journal of Clinical Medicine, Vol 9, Iss 1112, p 1112 (2020)
Volume 9
Issue 4
Dipòsit Digital de la UB
Universidad de Barcelona
Journal of Clinical Medicine, Vol 9, Iss 1112, p 1112 (2020)
Magnetic Resonance Imaging (MRI) of the Optic Nerve is difficult due to the fine extended nature of the structure, strong local magnetic field distortions induced by anatomy, and large motion artefacts associated with eye movement. To address these p
Autor:
Mirco Cosottini, M R Symms, Michela Tosetti, Laura Biagi, Renzo Guerrini, Nunzia Fontana, Gianluigi Tiberi, Alessio De Ciantis, Mauro Costagli, Riccardo Stara
Publikováno v:
Journal of Magnetic Resonance Imaging. 44:1048-1055
Purpose To predict local and global specific absorption rate (SAR) in individual subjects. Materials and Methods SAR was simulated for a head volume coil for two imaging sequences: axial T1-weighted “zero” time-of-echo (ZTE) sequence, sagittal T2
Autor:
Agostino Monorchio, Michela Tosetti, M R Symms, Gianluigi Tiberi, Mauro Costagli, Alessandra Retico, Riccardo Stara, Nunzia Fontana, Laura Biagi, Mirco Cosottini
Publikováno v:
Bioelectromagnetics. 36:358-366
Local specific absorption rate (SAR) evaluation in ultra high field (UHF) magnetic resonance (MR) systems is a major concern. In fact, at UHF, radiofrequency (RF) field inhomogeneity generates hot-spots that could cause localized tissue heating. Unfo
Autor:
Catarina Rua, Mirco Cosottini, M R Symms, Mauro Costagli, Stephen J. Wastling, Alberto Del Guerra, Gareth J. Barker, Laura Biagi, Michela Tosetti
Signal drop-off occurs in echo-planar imaging in inferior brain areas due to field gradients from susceptibility differences between air and tissue. Tailored-RF pulses based on a hyperbolic secant (HS) have been shown to partially recover signal at 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a9cab39741a5c05ff19fe329fe5fcc4
http://hdl.handle.net/11568/884458
http://hdl.handle.net/11568/884458
Autor:
Virna Zampa, Michela Tosetti, Laura Biagi, Alessandra Retico, M R Symms, Giacomo Aringhieri, Vito Gagliardi, Gianluigi Tiberi
Publikováno v:
MeMeA
We performed a study to predict global and local subject-specific Specific Absorption Rate (SAR) exposure in 7T Musculoskeletal (MSK) acquisition sequences. Such prediction, that is not available in current Magnetic Resonance (MR) exams, is possible
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::adb73ff5b8297516e4c0dab658b5dab6
http://hdl.handle.net/11568/1056498
http://hdl.handle.net/11568/1056498
Autor:
Michela Tosetti, Agostino Monorchio, M R Symms, Mauro Costagli, Guido Buonincontri, Matteo Gabrieli, Gianluigi Tiberi, Nunzia Fontana, Alessandra Retico, Riccardo Stara
Publikováno v:
Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering. 44:83-88
High static magnetic field magnetic resonance imaging (MRI) is commonly used for preclinical studies in rodents. In this context, minimization of coil losses is mandatory to scan samples that are small compared to the radiofrequency wavelength in the