Results 41 to 50 of about 93,892 (190)
A simple low-SAR technique for chemical-shift selection with high-field spin-echo imaging
, 2010 We have discovered a simple and highly robust method for removal of chemical shift artifact in spin-echo MR images, which simultaneously decreases the radiofrequency power deposition (specific absorption rate).
Heidemann, R. +5 more
core +1 more source
Design and Validation of a MR-compatible Pneumatic Manipulandum [PDF]
, 2007 The combination of functional MR imaging and novel robotic tools may provide unique opportunities to probe the neural systems underlying motor control and learning.
Scheidt, Robert A. +2 more
core +2 more sources
A Rotational Cylindrical fMRI Phantom for Image Quality Control. [PDF]
PLoS ONE, 2015 A novel phantom for image quality testing for functional magnetic resonance imaging (fMRI) scans is described.The cylindrical, rotatable, ~4.5L phantom, with eight wedge-shaped compartments, is used to simulate rest and activated states. The compartments
David A Tovar, Wang Zhan, Sunder S Rajan
doaj +1 more source
Diffusion Imaging in the Rat Cervical Spinal Cord [PDF]
, 2015 Magnetic resonance imaging (MRI) is the state of the art approach for assessing the status of the spinal cord noninvasively, and can be used as a diagnostic and prognostic tool in cases of disease or injury. Diffusion weighted imaging (DWI), is sensitive
Budde, Matthew D. +3 more
core +2 more sources
Maxwell-compensated design of asymmetric gradient waveforms for tensor-valued diffusion encoding
, 2019 Purpose: Asymmetric gradient waveforms are attractive for diffusion encoding due to their superior efficiency, however, the asymmetry may cause a residual gradient moment at the end of the encoding. Depending on the experiment setup, this residual moment
Nilsson, Markus +2 more
core +1 more source
Frontiers in Neuroscience, 2021 Purpose: To qualitatively and quantitatively compare the image quality and diagnostic performance of turbo gradient and spin echo PROPELLER diffusion-weighted imaging (TGSE-PROPELLER-DWI) vs.
Qing Fu +13 more
doaj +1 more source
Thalamo-cortical network activity between migraine attacks. Insights from MRI-based microstructural and functional resting-state network correlation analysis [PDF]
, 2016 BACKGROUND: Resting state magnetic resonance imaging allows studying functionally interconnected brain networks. Here we were aimed to verify functional connectivity between brain networks at rest and its relationship with thalamic microstructure in ...
Colonnese, Claudio +11 more
core +1 more source
Scientific Reports, 2017 Attempts have been made to reduce the total scan time in multi-dimensional J-resolved spectroscopic imaging (JRESI) using an echo-planar (EP) readout gradient, but acquisition duration remains a limitation for routine clinical use in the brain.
Manoj K. Sarma +4 more
doaj +1 more source
Echo planar time‐resolved imaging (EPTI) [PDF]
Magnetic Resonance in Medicine, 2019 PurposeTo develop an efficient distortion‐ and blurring‐free multi‐shot EPI technique for time‐resolved multiple‐contrast and/or quantitative imaging.MethodsEPI is a commonly used sequence but suffers from geometric distortions and blurring. Here, we introduce a new multi‐shot EPI technique termed echo planar time‐resolved imaging (EPTI), which has the
Wang, Fuyixue +8 more
openaire +3 more sources
Fast B1 mapping based on double-angle method with T1 correction using standard pulse sequence
Journal of Medical Physics, 2022 Radiofrequency (RF) field (B1) mapping by combining the double-angle method (DAM) and T1 correction was investigated. The signal intensities S1 and S2 acquired by flip angle (FA) α and double FA 2α at short repetition time (TR) were converted to a signal
Yoshiyuki Ishimori +3 more
doaj +1 more source