Results 81 to 90 of about 26,340 (261)

Detection and modeling of non-Gaussian apparent diffusion coefficient profiles in human brain data

, 2002
This work details the observation of non-Gaussian apparent diffusion coefficient (ADC) profiles in multi-direction, diffusion-weighted MR data acquired with easily achievable imaging parameters (b 1000 s/mm2).
BARKER, G. J.; id_orcid, Arridge, S.R., ALEXANDER, D. C., Alexander, D.C., ARRIDGE, S. R., Barker , G.J.   +5 more
core   +1 more source

Results of the MRI substudy of the intravenous magnesium efficacy in stroke trial [PDF]

, 2009
<p><b>Background and Purpose:</b>Although magnesium is neuroprotective in animal stroke models, no clinical benefit was confirmed in the Intravenous Magnesium Efficacy in Stroke (IMAGES) trial of acute stroke patients.
Alger, J.R., Lees, K.R., Saver, J.L., Weir, C.J., Starkman, S., Muir, K.W., Davis, S.M., Kidwell, C.S., Chen, C., De Silva, D.A.   +9 more
core   +1 more source

Prognostic and therapeutic evaluation of nasopharyngeal carcinoma by dynamic contrast-enhanced (DCE), diffusion-weighted (DW) magnetic resonance imaging (MRI) and magnetic resonance spectroscopy (MRS)

, 2021
Nasopharyngeal carcinoma (NPC) is an aggressive head and neck malignancy, and radiotherapy (with or without chemotherapy) is the primary treatment modality.
Lee, VHF, Chua, DTT, Ng, WT, Lee, AWM, Guan, XY, Law, SCK, Man, SSY, Mui, AWL, Vardhanabhuti, V   +8 more
core   +1 more source

Electroencephalographic Normalization as a Biomarker of Clinical Recovery in Down Syndrome Regression Disorder

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Down syndrome regression disorder is a syndrome characterized by subacute loss of cognitive, behavioral, and functional abilities in individuals with Down syndrome. Electroencephalography abnormalities are frequently observed during evaluation, but it remains unclear whether these findings represent a dynamic marker of disease ...
Jonathan D. Santoro, Mackenzie Silverman, Maeve C. Lucas, Mariam M. Yousuf, Samuel T. Otey, Stella V. Gray, Brittany Jordan, Madeline D. Kahan, Latanya D. Agurs, Michelle Van Hirtum Das, Deborah Holder, Devin King, Eileen A. Quinn, Ryan Kammeyer, Michael S. Rafii   +14 more
wiley   +1 more source

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright, Scotty G. McKay, Jean Ramos Bou, Fen Bao, Vivian B. Truong, Chenyang Li, Li Jiang, Anza B. Memon, E. Mark Haacke, Yulin Ge, Yongsheng Chen   +10 more
wiley   +1 more source

Axon radius measurements in vivo from diffusion MRI: A feasibility study

, 2007
This paper investigates the feasibility of using diffusion MRI to measure axon-cell dimensions in the white matter of live subjects. A simple geometric model of white-matter tissue provides an expression that relates the axon radius to the diffusion MRI ...
Daniel C. Alexander, Alexander, DC
core   +1 more source

Fusion of Diffusion-Weighted Magnetic Resonance Imaging and High-Resolution Computed Tomography Scan As a Preoperative Tool for Classification of Middle Ear Cholesteatoma

, 2022
BACKGROUND: The role of imaging in cholesteatoma continues to evolve with excellent bony details provided by high-resolution computed tomography and high soft tissue identification for cholesteatoma by diffusion-weighted magnetic resonance imaging.
Ahmed Galal, Mohamed Eid, Galal, Ahmed, Mohamed Badr-El-Dine, Eid, Mohamed, Omran, Ahmed, Badr-El-Dine, Mohamed, Mohamed ElNaggar, Ahmed Omran, ElNaggar, Mohamed   +9 more
core   +1 more source

Human Pegivirus Encephalitis With Brain Detection and Response to Sofosbuvir Ledipasvir

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Human pegivirus (HPgV‐1) has been associated with severe encephalomyelitis in immunocompromised patients. Its neurological spectrum remains poorly defined. We report a slowly progressive encephalitis in a person living with well‐controlled HIV, characterized by white matter abnormalities and inflammatory cerebrospinal fluid (CSF). HPgV RNA was
Antoine Moulignier, Françoise Heran, Francis Lallemand, Pierre Bourdillon   +3 more
wiley   +1 more source

POAS4SPM: a toolbox for SPM to denoise diffusion MRI data [PDF]

, 2013
We present an implementation of a recently developed noise reduction algorithm for dMRI data, called multi-shell position orientation adaptive smoothing (msPOAS), as a toolbox for SPM.
Weiskopf, N, Polzehl, J, Weiskopf, N. ; https://orcid.org/, Polzehl, J., Nikolaus Weiskopf, Weiskopf, Nikolaus, Mohammadi, S, Karsten Tabelow, Tabelow, K., Mohammadi, S., Tabelow, Karsten, Jörg Polzehl, Tabelow, K, Polzehl, Jörg, Mohammadi, Siawoosh, Siawoosh Mohammadi   +15 more
core   +1 more source

Magic angle effect on diffusion tensor imaging in ligament and brain

, 2022
Purpose: To evaluate the magic angle effect on diffusion tensor imaging (DTI) measurements in rat ligaments and mouse brains. Methods: Three rat knee joints and three mouse brains were scanned at 9.4 T using a modified 3D diffusion-weighted spin echo ...
Surendra Maharjan, Qiuting Wen, Hilton, Matthew J., Mirando, Anthony J., Qi, Yi, Nian Wang, Wen, Qiuting, Anthony J. Mirando, Maharjan, Surendra, Spritzer, Charles E., Charles E. Spritzer, Matthew J. Hilton, Wang, Nian, Yi Qi   +13 more
core   +1 more source