Results 21 to 30 of about 26,868 (222)

Clinical Implementation of 7T MRI for the Identification of Incidental Intracranial Aneurysms versus Anatomic Variants.

, 2021
Most unruptured intracranial aneurysms can be adequately characterized using 1.5T and 3T MR imaging. Findings in a subgroup of patients can remain unclear due to difficulties in distinguishing aneurysms from vascular anatomic variants. We retrospectively
Radojewski, P., Joseph, A., Slotboom, J., Wiest, R., Mordasini, P., Arun, J.   +5 more
core   +1 more source

Gray matter network reorganization in multiple sclerosis from 7‐Tesla and 3‐Tesla MRI data

Annals of Clinical and Translational Neurology, 2020
Objective The objective of this study was to determine the ability of 7T‐MRI for characterizing brain tissue integrity in early relapsing‐remitting MS patients compared to conventional 3T‐MRI and to investigate whether 7T‐MRI improves the performance for
Gabriel Gonzalez‐Escamilla, Dumitru Ciolac, Silvia De Santis, Angela Radetz, Vinzenz Fleischer, Amgad Droby, Alard Roebroeck, Sven G. Meuth, Muthuraman Muthuraman, Sergiu Groppa   +9 more
doaj   +1 more source

Pseudo-Label Assisted nnU-Net enables automatic segmentation of 7T MRI from a single acquisition

Frontiers in Neuroimaging, 2023
IntroductionAutomatic whole brain and lesion segmentation at 7T presents challenges, primarily from bias fields, susceptibility artifacts including distortions, and registration errors.
Corinne Donnay, Henry Dieckhaus, Charidimos Tsagkas, María Inés Gaitán, Erin S. Beck, Erin S. Beck, Andrew Mullins, Andrew Mullins, Daniel S. Reich, Govind Nair   +9 more
doaj   +1 more source

Asthma and COPD in cystic fibrosis intron-8 5T carriers. A population-based study

Respiratory Research, 2005
Background Carriers of cystic fibrosis intron-8 5T alleles with high exon-9 skipping could have increased annual lung function decline and increased risk for asthma or chronic obstructive pulmonary disease (COPD).
Lange Peter, Tybjærg-Hansen Anne, Dahl Morten, Nordestgaard Børge G   +3 more
doaj   +1 more source

B₀ shimming of the human heart at 7T [PDF]

Magnetic Resonance in Medicine, 2020
PurposeInhomogeneities of the static magnetic B0 field are a major limiting factor in cardiac MRI at ultrahigh field (≥ 7T), as they result in signal loss and image distortions. Different magnetic susceptibilities of the myocardium and surrounding tissue in combination with cardiac motion lead to strong spatio‐temporal B0‐field inhomogeneities, and ...
Michael Hock, Maxim Terekhov, Maria Roxana Stefanescu, David Lohr, Stefan Herz, Theresa Reiter, Markus Ankenbrand, Aleksander Kosmala, Tobias Gassenmaier, Christoph Juchem, Laura Maria Schreiber   +10 more
openaire   +2 more sources

Emerging Role for 7T MRI and Metabolic Imaging for Pancreatic and Liver Cancer

Metabolites, 2022
Advances in magnet technologies have led to next generation 7T magnetic resonance scanners which can fit in the footprint and price point of conventional hospital scanners (1.5–3T).
Debra Rivera
doaj   +1 more source

Submillimeter T 1 atlas for subject‐specific abnormality detection at 7T

, 2023
Purpose: Studies at 3T have shown that T1relaxometry enables characterization of brain tissues at the single-subject level by comparing individual physical properties to a normative atlas.
Margitta Seeck, Peter, Jessica, Joseph, Arun, Seiffge, David J., Piotr Radojewski, Slotboom, Johannes, Tom Willems, Karl Egger, Serge Vulliemoz, Johannes Slotboom, Punith B. Venkategowda, Gabriele Bonanno, Samuele Caneschi, Ricardo A. Corredor Jerez, Vulliemoz, Serge, Robert Hoepner, Klöppel, Stefan, Thiran, Jean-Philippe, Hilbert, Tom, Arun, Joseph, Grieder, Matthias, Jean‐Philippe Thiran, Seiffge, David, Matthias Grieder, Jessica Peter, Roland Wiest, Venkategowda, Punith B, Corredor Jerez, Ricardo A, Wiest, Roland, Arun Joseph, Thiran, Jean‐Philippe, Bonanno, Gabriele, Kober, Tobias, Willems, Tom, Piredda, Gian Franco, Elisabeth Jehli, Egger, Karl, Gian Franco Piredda, Venkategowda, Punith B., Corredor Jerez, Ricardo A., Hoepner, Robert, Caneschi, Samuele, Tobias Kober, Stefan Klöppel, Goeldlin, Martina, David Seiffge, Seeck, Margitta, Maréchal, Bénédicte, Tom Hilbert, Bénédicte Maréchal, Radojewski, Piotr, Martina Goeldlin, Jehli, Elisabeth   +52 more
core   +1 more source

Improved differentiation between knees with cartilage lesions and controls using 7T relaxation time mapping

Journal of Orthopaedic Translation, 2015
Background/Objective: T1ρ and T2 relaxation mapping in knee cartilage have been used extensively at 3 Tesla (T) as markers for proteoglycan and collagen, respectively.
Cory Wyatt, Aditi Guha, Anand Venkatachari, Xiaojuan Li, Roland Krug, Douglas E. Kelley, Thomas Link, Sharmila Majumdar   +7 more
doaj   +1 more source

3 versus 7 Tesla magnetic resonance imaging for parcellations of subcortical brain structures in clinical settings.

PLoS ONE, 2020
7 Tesla (7T) magnetic resonance imaging holds great promise for improved visualization of the human brain for clinical purposes. To assess whether 7T is superior regarding localization procedures of small brain structures, we compared manual ...
Bethany R Isaacs, Martijn J Mulder, Josephine M Groot, Nikita van Berendonk, Nicky Lute, Pierre-Louis Bazin, Birte U Forstmann, Anneke Alkemade   +7 more
doaj   +1 more source

Feasibility of Glutamate and GABA Detection in Pons and Thalamus at 3T and 7T by Proton Magnetic Resonance Spectroscopy

Frontiers in Neuroscience, 2020
Glutamate detection in pons and thalamus using proton magnetic resonance spectroscopy (1H-MRS) after an intervention is of interest for studying various brain disorders. However, 1H-MRS in these brain regions is challenging and time-consuming, especially
Samaira Younis, Anders Hougaard, Casper E. Christensen, Mark B. Vestergaard, Esben T. Petersen, Esben T. Petersen, Vincent O. Boer, Olaf B. Paulson, Messoud Ashina, Anouk Marsman, Henrik B. W. Larsson   +10 more
doaj   +1 more source