Results 281 to 290 of about 4,562,205 (344)

RF shimming strategy for an open 60‐channel RF transmit 7T MRI head coil for routine use on the single transmit mode

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose To develop an radiofrequency (RF) shimming approach for operating the 2nd Generation Tic Tac Toe RF coil system (60 transmit channels integrated with 32‐channel receive insert) for routine use in 7T neuro MRI on the single transmit mode.
Andrea N. Sajewski   +8 more
wiley   +1 more source

Functional neuroimaging biomarkers of anhedonia response to escitalopram plus adjunct aripiprazole treatment for major depressive disorder. [PDF]

open access: yesBJPsych Open
Vaccarino SR   +13 more
europepmc   +1 more source

Block‐interleaved segmented echo‐planar imaging for improved activity detection in submillimeter high‐resolution functional MRI at 7 T

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose Isotropic submillimeter high‐resolution functional MRI (fMRI) facilitates noninvasive investigation of neuronal activities at the mesoscale level, including cortical columns and laminae. However, the task‐evoked functional activity becomes less detectable when using single‐shot echo planar imaging (EPI) with parallel imaging techniques
Guoxiang Liu   +2 more
wiley   +1 more source

From functional neuroimaging to neurostimulation: fNIRS devices as cognitive enhancers. [PDF]

open access: yesBehav Res Methods
Waight JL   +3 more
europepmc   +1 more source

gammaSTAR: A framework for the development of dynamic, real‐time capable MR sequences

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose To present the real‐time capability and advanced MR sequence library of the MR sequence development framework gammaSTAR. Methods The presented platform consists of four different components: (1) a frontend for sequence development combined with a Python backend for sequence generation; (2) a Lua backend for the creation of hardware ...
Simon Konstandin   +2 more
wiley   +1 more source

Using PINS pulses to saturate inflow effects on fMRI data at 3 and 7 T

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose To suppress inflow effects by saturating the magnetization within slice gaps. Methods Power independent of number of slices (PINS) pulses was designed to saturate the magnetization in all slice gaps at once. The PINS saturation module was played before every excitation.
Shota Hodono   +4 more
wiley   +1 more source

Steady‐state free precession for T2* relaxometry: All echoes in every readout with k‐space aliasing

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose Multi‐echo gradient echo imaging is useful for a range of applications including relaxometry, susceptibility mapping, and quantifying relative proportions of fat and water. This relies primarily on long‐TR multi‐echo gradient echo sequences (FLASH), which by design isolate one signal component (i.e., echo) at a time per readout.
Peter J. Lally   +7 more
wiley   +1 more source

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