Stroke with unknown time of symptom onset: baseline clinical and magnetic resonance imaging data of the first thousand patients in WAKE-UP (efficacy and safety of mri-based thrombolysis in wake-up stroke: a randomized, doubleblind, placebo-controlled trial) [PDF]
, 2017 Background and Purpose—We describe clinical and magnetic resonance imaging (MRI) characteristics of stroke patients with unknown time of symptom onset potentially eligible for thrombolysis from a large prospective cohort.
Boutitie, Florent +18 more
core +2 more sources
Indian Journal of Radiology and Imaging, 2010 Aim: To define a range of apparent diffusion coefficient values in spinal tuberculosis and to evaluate the sensitivity of diffusion-weighted magnetic resonance imaging (DW-MRI) and apparent diffusion coefficient values in patients of spinal tuberculosis.
Lalitha Palle +2 more
doaj +1 more source
Diffusion imaging and tractography of congenital brain malformations. [PDF]
, 2010 Diffusion imaging is an MRI modality that measures the microscopic molecular motion of water in order to investigate white matter microstructure.
Barkovich, A James +2 more
core +3 more sources
Polarized Helium to Image the Lung [PDF]
, 2005 The main findings of the european PHIL project (Polarised Helium to Image the Lung) are reported. State of the art optical pumping techniques for polarising ^3He gas are described. MRI methodological improvements allow dynamical ventilation images with a
Leduc, Michèle, Nacher, Pierre-Jean
core +4 more sources
An Open MRI Dataset For Multiscale Neuroscience
Scientific Data, 2022 Measurement(s) Brain anatomy • Brain activity • Diffusion • Brain microstructure • Functional connectivity • Structural connectivity Technology Type(s) magnetic resonance imaging (MRI) • Functional Magnetic Resonance Imaging • Diffusion Weighted Imaging •
Jessica Royer +16 more
doaj +1 more source
Magnetorotational instability in protoplanetary discs: The effect of dust grains [PDF]
, 2007 We investigate the linear growth and vertical structure of the MRI in protoplanetary discs when dust grains are well mixed with the gas over the entire disc thickness. All the grains have the same radius (a = 0.1, 1 or 3 micron) and constitute 1 % of the
Andrews +49 more
core +4 more sources
Optimization of diffusion imaging for multiple target regions using maximum likelihood estimation
Current Directions in Biomedical Engineering, 2017 In this work a procedure is proposed to determine an optimal distribution of b-values in diffusion MRI measu-rements. The optimization procedure uses a method of Maximum Likelihood Estimation which can operate on any given number of b-values, values of ...
Bielak Lars, Bock Michael
doaj +1 more source
The Egyptian Journal of Radiology and Nuclear Medicine, 2020 Background MRI’s role had been increasing in breast imaging. In this study, we evaluated the role of diffusion-weighted MRI in correlation with ultrasound-guided percutaneous breast biopsy for diagnosis of solid breast lesions.
Osama Lotfy Alabd +4 more
doaj +1 more source
Harmonization of Brain Diffusion MRI: Concepts and Methods
Frontiers in Neuroscience, 2020 MRI diffusion data suffers from significant inter- and intra-site variability, which hinders multi-site and/or longitudinal diffusion studies. This variability may arise from a range of factors, such as hardware, reconstruction algorithms and acquisition
Maíra Siqueira Pinto +8 more
semanticscholar +1 more source
Microstructural parameter estimation in vivo using diffusion MRI and structured prior information. [PDF]
, 2016 Diffusion MRI has recently been used with detailed models to probe tissue microstructure. Much of this work has been performed ex vivo with powerful scanner hardware, to gain sensitivity to parameters such as axon radius.
Aboitiz +43 more
core +1 more source