Results 91 to 100 of about 48,188 (262)

The Association of Apparent Myelin Water Fraction With Diffusional Kurtosis and Biophysical Modeling Parameters. [PDF]

NMR Biomed
We investigated associations between a panel of diffusion MRI metrics and myelin content, using ViSTa apparent myelin water fraction (aMWF) as a proxy for myelin. Fractional anisotropy (FA) showed a robust association with aMWF; however, more advanced metrics including radial kurtosis (K⊥) and axonal water fraction (f) had stronger correlations ...
Moss HG, Sugarman MA, Lee J, Chen AA, Jensen JH, Benitez A.   +5 more
europepmc   +2 more sources

Retinal neurovascular alterations are associated with optic radiation microstructure in adrenomyeloneuropathy: A susceptibility separation MRI study

VIEW, EarlyView.
In a cross‐sectional cohort of 104 participants, 7 T susceptibility separation MRI and diffusion imaging were combined with retinal imaging and visual evoked potentials to characterize visual pathway involvement in adrenomyeloneuropathy (AMN). Absolute diamagnetic susceptibility, a myelin‐associated measure, and fractional anisotropy (FA) showed ...
Ronghao Li, Jun Li, Chongyi Li, Xingang Wang, Wenyu Zhou, Yangcheng Zou, Zhiming Zhen, Li Xiao, Na Liang, Zongxing Zou, Junru Yang, Hui Yang, Chunhua Fu, Weiqi Chen, Yuyu Chen, Chen Liu, Hongjiang Wei, Liang Tan   +17 more
wiley   +1 more source

Calibration Techniques for Water Content Measurements in Solid Biofuels

Energies
This paper presents methodologies and equipment for SI-traceable inline measurements of water content (a critical quality parameter) in solid biofuels.
Henrik Kjeldsen, Peter Friis Østergaard, Helena Strauss, Jan Nielsen, Bayan Tallawi, Eric Georgin, Pierre Sabouroux, Jan G. Nielsen, Jens Ole Hougaard   +8 more
doaj   +1 more source

Associations of cannabis use, tobacco use and co‐use with brain volume: A systematic review and meta‐analysis

Addiction, EarlyView.
Abstract Background and aims Cannabis is the most widely used illicit drug worldwide and is often co‐used with tobacco, the leading cause of preventable death. Although cannabis and tobacco have distinct neurobiological actions, their associations with brain volumes are unclear.
Katherine Sawyer, Tom P. Freeman, Martine Skumlien, Esther Walton, Thomas Lancaster, Jorien L. Treur, Valentina Lorenzetti, Anna K. M. Blackwell, Chloe Burke, Richie J. Carr, Constantinos Constantinides, Maisie Cox, Sarah Dance, Shadi Daryan, Sorcha Hamilton, Tom Jenkins, Gemma M. J. Taylor   +16 more
wiley   +1 more source

Microstructural Changes in the Cerebral White Matter After 12 Months of CPAP Treatment for Moderate to Severe Obstructive Sleep Apnoea: A TBSS Study

Nature and Science of Sleep
Xiang Liu,1,* Zhipeng Wei,2,* Long Ting,1,* Xuming Liu,3 Yongqiang Shu,1 Huang Ling,1 Lifeng Li,1 Yumeng Liu,1 Guojin Xia,1 Dechang Peng,1 Haijun Li1 1Department of Radiology, the First Affiliated Hospital, Jiangxi Medical College, Nanchang ...
Liu X, Wei Z, Ting L, Liu X, Shu Y, Ling H, Li L, Liu Y, Xia G, Peng D, Li H   +10 more
doaj  

MR-DTI RICIAN DENOISING

Dyna, 2013
En este trabajo se trata el problema de eliminación de ruido Rician en imagen de Resonancia Magnética para la mejora de la reconstrucción de las imágenes de DifusiónTensorial. El modelado del ruido Rician es enfocado desde un marco variacional basado en el operador de Variación Total, convirtiéndolo en un problema de minimización de energía que conduce
MARTIN, ADRIAN, GARAMENDI, JUAN F., SCHIAVI, EMANUELE   +2 more
openaire   +3 more sources

Topical Tranexamic Acid in Breast Surgery: A Systematic Review and Meta‐Analysis of Postoperative Bleeding Outcomes

ANZ Journal of Surgery, EarlyView.
Study evaluated the effectiveness and safety of topical tranexamic acid in breast surgery. Topical TXA reduced postoperative haematoma risk by 75% and significantly decreased postoperative drain output compared with controls, while seroma rates were unchanged.
Sina Sobhanmanesh, Femi E. Ayeni, Deborah S. M. Cheung   +2 more
wiley   +1 more source

Muscle morphology and intramuscular fat after treatment‐as‐usual including botulinum neurotoxin A injections in children with cerebral palsy

Developmental Medicine &Child Neurology, EarlyView.
Normalized muscle volume remained unchanged in all evaluated muscles after the 12‐month treatment‐as‐usual in children with cerebral palsy. Higher intramuscular fat fraction was observed in the medial gastrocnemius, suggesting concurrent intramuscular fat infiltration.
Zhongzheng Wang, Antea Destro, Alexandra Åhblom, Sven Petersson, Ferdinand Von Walden, Eva Pontén, Cecilia Lidbeck, Ruoli Wang   +7 more
wiley   +1 more source

Disentangling the effect of brain insulin resistance on brain health (BIR‐BrainHealth): Rationale and study protocol

Diabetic Medicine, EarlyView.
Abstract Aims Insulin signalling in the brain is crucial for systemic metabolic regulation and cognitive function. In some individuals, these effects are reduced, a phenomenon referred to as brain insulin resistance (BIR). This condition may contribute to the elevated risk of cognitive decline and dementia in diabetes, yet its prevalence, mechanisms ...
Sabrina Wangler, Peter Sørensen, Konni Kass, Nicole Jaqueline Jensen, Mark Bitsch Vestergaard, Julia Hummel, Ronja Völk, Julie Christine Antvorskov, Flemming Pociot, Jørgen Rungby, Martin Heni, Henrik Bo Wiberg Larsson   +11 more
wiley   +1 more source

How Regulatory Costs Impede Financial Technology Gains

European Financial Management, EarlyView.
ABSTRACT While financial technology innovation lowers intermediation costs, regulatory frictions may prevent these gains from reaching long‐term investors and borrowers. Using variation in retail investor participation driven by state securities registration lapses in peer‐to‐peer lending, we demonstrate that regulatory frictions are associated with ...
Shyam Venkatesan, Brian Wolfe, Woongsun Yoo   +2 more
wiley   +1 more source