Results 91 to 100 of about 12,559 (226)

10.5 T In Vivo Head Imaging With Universal RF Shimming

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Brain MR imaging at 10.5 T ultra‐high field offers significant improvements in signal‐to‐noise ratio (SNR), but faces challenges with B1+ inhomogeneity. Parallel‐transmission (pTx) can be used to achieve a more uniform RF field distribution, but necessitates the use of B1+ calibration in the region of interest.
Young Woo Park, Simon Schmidt, Wolfgang Bogner, Gregory J. Metzger, Małgorzata Marjańska   +4 more
wiley   +1 more source

Deuterium 1‐Channel Transmit/16‐Channel High Impedance Receive Array Combined With 16‐Channel 1H Dual‐Row Transceiver Array for 7 Tesla Brain Imaging

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop and evaluate an 2H/1H coil configuration that enables deuterium metabolic imaging at 7 T while preserving high‐quality 1H anatomical imaging. Methods An 16‐channel 2H high‐impedance receive array was combined with a 2H transmit birdcage and a 16‐channel dual‐row 1H transceiver array.
Bei Zhang, Wenkai Liang, Chichen Dong, Anke Henning   +3 more
wiley   +1 more source

Whole-brain vasculature reconstruction at the single capillary level [PDF]

, 2018
The distinct organization of the brain’s vascular network ensures that it is adequately supplied with oxygen and nutrients. However, despite this fundamental role, a detailed reconstruction of the brain-wide vasculature at the capillary level remains ...
Allegra Mascaro, Anna Letizia, Costantini, Irene, Di Giovanna, Antonino Paolo, Frasconi, Paolo, Müllenbroich, Marie Caroline, Pavone, Francesco Saverio, Sacconi, Leonardo, Silvestri, Ludovico, Tibo, Alessandro   +8 more
core   +2 more sources

Quantitative Comparison of Multi‐Echo Spin Echo and Multi‐Echo Gradient Echo Myelin Water Imaging in a Panel of Mbp Enhancer‐Edited Mouse Lines

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To evaluate the correspondence between myelin water fraction (MWF) estimates derived from multi‐echo spin echo (MESE) and multi‐echo gradient echo (MGRE) imaging in fixed mouse brain tissue, using a panel of myelin basic protein (Mbp) enhancer‐edited mouse lines exhibiting graded hypomyelination.
Vladimir Grouza, Yawen Shi, Sean Goldfarb, Klaudia M. Bednarz, Isabella Gomez, Marius Tuznik, Zhe Wu, Hooman Bagheri, Katherine A. Siminovitch, Alan C. Peterson, Thomas Stroh, David A. Rudko   +11 more
wiley   +1 more source

Low-field magnetic resonance imaging and multislice computed tomography for the detection of cervical syringomyelia in dogs [PDF]

, 2015
Background: Syringomyelia (SM) is defined as the presence of fluid- containing cavities within the parenchyma of the spinal cord. Sagittal magnetic resonance (MR) images have been described as the preferred technique for visualizing SMin dogs and humans.
Akiyama, Barone, Bland, Bou-Haider, Brodfelt, Capello, Carruthers, Costa, Couturier, Cross, Dennis, Dewey, Doyon, Drees, Driver, Driver, Feliu-Pascual, Fishbein, Freeman, Greitz, Hecht, Kirberger, Kitagawa, Klekamp, Kromhout, Landis, Lee, Levine, Loderstedt, Olby, Parker, R Core team, Rusbridge, Rusbridge, Rusbridge, Todor, Trigylidas   +36 more
core   +2 more sources

Deep learning assessment of fetal brain maturation on 3D ultrasound volumes in early‐onset fetal growth restriction

Ultrasound in Obstetrics &Gynecology, EarlyView.
ABSTRACT Objectives To quantify fetal brain maturation in fetuses with early‐onset fetal growth restriction (FGR) by estimating gestational age (GA) based on the appearance of gyrification and individual brain structures from three‐dimensional (3D) ultrasound volumes using a deep‐learning model trained on optimally developing subjects.
L. Meijerink, M. Wyburd, A. I. L. Namburete, T. Alderliesten, F. Groenendaal, M. Benders, F. Terstappen, M. N. Bekker   +7 more
wiley   +1 more source

Effects of cell phone radiation on migration of granule cells in rat cerebellum [PDF]

, 2014
Introduction: There are a growing number of cell phone devices and they are one of the most popular sources for electromagnetic waves. However, there are many concerns regarding their biological effects on the body, especially the central nervous ...
Fatehi, Daryoush., Kaffashian, Mohammad Reza., Mohammadi Bolbanabad, Hiva., Rostamzadeh, Ayoob.   +3 more
core  

Monro-Kellie 2.0: The dynamic vascular and venous pathophysiological components of intracranial pressure [PDF]

, 2016
For 200 years, the ‘closed box’ analogy of intracranial pressure (ICP) has underpinned neurosurgery and neuro-critical care. Cushing conceptualised the Monro-Kellie doctrine stating that a change in blood, brain or CSF volume resulted in reciprocal ...
Wilson, MH
core   +1 more source

Strain Traits of Intracranially Administered L‐Type Bovine Spongiform Encephalopathy Prions Are not Significantly Modified During Intraspecies Transmission in Cynomolgus Monkeys

Microbiology and Immunology, EarlyView.
ABSTRACT Among the three prion strains of bovine spongiform encephalopathy (BSE), classical BSE (C‐BSE) prions are known causative agents of variant Creutzfeldt–Jakob disease. By contrast, human infections with L‐type (L‐) or H‐type (H‐) BSE prions have not been reported.
Ken'ichi Hagiwara, Hiroaki Shibata, Minoru Tobiume, Yuko Sato, Keiko Ohto, Sachi Okabayashi, Nozomi Nakano, Motohiro Horiuchi, Fumiko Ono   +8 more
wiley   +1 more source

The application of artificial intelligence in blind ultrasound sweep diagnostics for prenatal medicine: A systematic literature review

Acta Obstetricia et Gynecologica Scandinavica, EarlyView.
Artificial intelligence enables the interpretation of blind ultrasound sweeps for prenatal diagnostics. Applications include accurate gestational age estimation, amniotic fluid segmentation, fetal presentation classification, and placental localization.
Johanna Schott, Melanie Wilmes, Adeline Walter, Ruben Plöger, Ingo Gottschalk, Tanja Groten, Florian Recker   +6 more
wiley   +1 more source