Results 71 to 80 of about 6,791 (211)

Direct Targeting of the Anterior Nucleus of the Thalamus via 3 T Quantitative Susceptibility Mapping

Frontiers in Neuroscience, 2021
Objective: Deep brain stimulation (DBS) of the anterior nucleus of the thalamus (ANT) is a potentially effective, minimally invasive, and reversible method for treating epilepsy.
Kaijia Yu, Zhiwei Ren, Tao Yu, Xueyuan Wang, Yongsheng Hu, Song Guo, Jianyu Li, Yongjie Li   +7 more
doaj   +1 more source

Learning in radiation oncology: 12‐month experience with a new incident learning system

Journal of Medical Radiation Sciences, Volume 72, Issue 1, Page 63-73, March 2025.
Introduction of an incident learning incident (ILS) was shown to have had a positive impact on reporting and safety culture within a local health district (LHD). Survey findings correlate with existing literature that ILSs are effective tools for improving patient safety and departmental safety facilitating quality improvement.
Krystle Crouch, Laura Adamson, Rachael Beldham‐Collins, Jonathan Sykes, David Thwaites   +4 more
wiley   +1 more source

Neuromelanin‐Sensitive MRI as a Marker of Clinical Severity and Disease Burden in Parkinson's Disease: A Systematic Review and Meta‐analysis

Movement Disorders, EarlyView.
Abstract The neuropathology of Parkinson's disease (PD) is characterized in part by the degeneration of catecholaminergic neurons, particularly dopaminergic neurons in the substantia nigra pars compacta (SNpc) and noradrenergic neurons in the locus coeruleus (LC), yet no validated in vivo biomarker quantifies this process.
Rayo Akande, Thomas Kustermann, Štefan Holiga, Judith Anzures‐Cabrera, Patrik Brundin, Gennaro Pagano   +5 more
wiley   +1 more source

MRI R2* and quantitative susceptibility mapping in brain tissue with extreme iron overload

European Radiology Experimental
Background R2* and quantitative susceptibility mapping (QSM) are regarded as robust techniques for assessing iron content in the brain. While these techniques are established for normal or moderate iron levels, their usability in extreme iron overload ...
Christoph Birkl, Marlene Panzer, Christian Kames, Anna Maria Birkl-Toeglhofer, Alexander Rauscher, Bernhard Glodny, Elke R. Gizewski, Heinz Zoller   +7 more
doaj   +1 more source

Improved Visualization of Cartilage Canals Using Quantitative Susceptibility Mapping. [PDF]

PLoS ONE, 2015
Cartilage canal vessels are critical to the normal function of epiphyseal (growth) cartilage and damage to these vessels is demonstrated or suspected in several important developmental orthopaedic diseases.
Mikko J Nissi, Ferenc Tóth, Luning Wang, Cathy S Carlson, Jutta M Ellermann   +4 more
doaj   +1 more source

Magnetic resonance imaging (MRI) of pharmacological ascorbate-induced iron redox state as a biomarker in subjects undergoing radio-chemotherapy

Redox Biology, 2021
Pharmacological ascorbate (P-AscH-) combined with standard of care (SOC) radiation and temozolomide is being evaluated in a phase 2 clinical trial (NCT02344355) in the treatment of glioblastoma (GBM).
Cameron M. Cushing, Michael S. Petronek, Kellie L. Bodeker, Sandy Vollstedt, Heather A. Brown, Emyleigh Opat, Nancy J. Hollenbeck, Thomas Shanks, Daniel J. Berg, Brian J. Smith, Mark C. Smith, Varun Monga, Muhammad Furqan, Matthew A. Howard, Jeremy D. Greenlee, Kranti A. Mapuskar, Joel St-Aubin, Ryan T. Flynn, Joseph J. Cullen, Garry R. Buettner, Douglas R. Spitz, John M. Buatti, Bryan G. Allen, Vincent A. Magnotta   +23 more
doaj   +1 more source

Fast Reconstruction of Motion‐Corrupted Data With Mobile‐GRAPPA: Motion and δB0$$ \delta {B}_0 $$ Inhomogeneity Correction Leveraging Efficient GRAPPA

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop an accurate and computationally efficient motion‐corrected MRI reconstruction framework that incorporates hundreds to thousands of motion and δB0$$ \delta {B}_0 $$ estimates from high‐temporal‐resolution tracking. Methods We propose Mobile‐GRAPPA, a k‐space preprocessing approach that uses MLP‐parameterized local GRAPPA ...
Yimeng Lin, Nan Wang, Daniel Abraham, Daniel Polak, Xiaozhi Cao, Aizada Nurdinova, Stephen Cauley, Kawin Setsompop   +7 more
wiley   +1 more source

Predicting Mesoscopic Larmor Frequency Shifts in Ex Vivo Porcine Optic Nerve

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Larmor frequency shifts in white matter (WM) vary with fiber orientation due to anisotropic microstructure. Since clinical voxels are significantly larger than these microscopic frequency variations, the measured signal represents a bulk average of local shifts.
Anders Dyhr Sandgaard, André Pampel, Roland Müller, Niklas Wallstein, Toralf Mildner, Carsten Jäger, Markus Morawski, Aage Kristian Olsen Alstrup, Harald E. Möller, Sune Nørhøj Jespersen   +9 more
wiley   +1 more source

From Breath‐Hold to Free‐Breathing: Possibilities in High‐Resolution Quantitative Susceptibility Mapping (QSM) of the Kidney With Respiratory Gating

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This study aimed to assess the feasibility of QSM in the human kidney during free‐breathing using respiratory gating for motion compensation. Methods Renal imaging of 15 healthy volunteers was performed using an axial multi‐echo GRE sequence on a 3 T MRI scanner.
Matthias Deitermann, Birte Sehlmeyer, Thomas Andreas Thiel, Hans‐Jörg Wittsack, Alexandra Ljimani, Anja Müller‐Lutz, Gerald Antoch, Eric Bechler   +7 more
wiley   +1 more source

Exploring linearity of deep neural network trained QSM: QSMnet+

NeuroImage, 2020
Recently, deep neural network-powered quantitative susceptibility mapping (QSM), QSMnet, successfully performed ill-conditioned dipole inversion in QSM and generated high-quality susceptibility maps. In this paper, the network, which was trained by healthy volunteer data, is evaluated for hemorrhagic lesions that have substantially higher ...
Woojin Jung, Jaeyeon Yoon, Sooyeon Ji, Joon Yul Choi, Jae Myung Kim, Yoonho Nam, Eung-Yeop Kim, Jongho Lee 0003   +7 more
openaire   +4 more sources