Overview of functional magnetic resonance imaging
GH Glover - Neurosurgery Clinics, 2011 - neurosurgery.theclinics.com
Functional magnetic resonance imaging (fMRI) is a class of imaging methods developed to
demonstrate regional, time-varying changes in brain metabolism. 1–3 These metabolic …
demonstrate regional, time-varying changes in brain metabolism. 1–3 These metabolic …
Overcoming artifacts from metallic orthopedic implants at high-field-strength MR imaging and multi-detector CT
At magnetic resonance (MR) imaging and multidetector computed tomography (CT), artifacts
arising from metallic orthopedic hardware are an obstacle to obtaining optimal images …
arising from metallic orthopedic hardware are an obstacle to obtaining optimal images …
Optimized EPI for fMRI studies of the orbitofrontal cortex
R Deichmann, JA Gottfried, C Hutton, R Turner - Neuroimage, 2003 - Elsevier
A common problem in gradient-echo echo planar imaging (EPI) is the occurrence of image
distortions and signal losses caused by susceptibility gradients near air/tissue interfaces …
distortions and signal losses caused by susceptibility gradients near air/tissue interfaces …
Anatomic localization and quantitative analysis of gradient refocused echo-planar fMRI susceptibility artifacts
Functional magnetic resonance imaging (fMRI) techniques, such as echo-planar imaging,
can permit rapid, sensitive, whole-brain measurements of local blood flow-induced MR …
can permit rapid, sensitive, whole-brain measurements of local blood flow-induced MR …
Spiral‐in/out BOLD fMRI for increased SNR and reduced susceptibility artifacts
GH Glover, CS Law - … in Medicine: An Official Journal of the …, 2001 - Wiley Online Library
BOLD fMRI is hampered by dropout of signal in the orbitofrontal and parietal brain regions
due to magnetic field gradients near air‐tissue interfaces. This work reports the use of spiral …
due to magnetic field gradients near air‐tissue interfaces. This work reports the use of spiral …
Optimal EPI parameters for reduction of susceptibility-induced BOLD sensitivity losses: a whole-brain analysis at 3 T and 1.5 T
N Weiskopf, C Hutton, O Josephs, R Deichmann - Neuroimage, 2006 - Elsevier
Most functional magnetic resonance imaging (fMRI) studies record the blood oxygen level-
dependent (BOLD) signal using fast gradient-echo echo-planar imaging (GE EPI). However …
dependent (BOLD) signal using fast gradient-echo echo-planar imaging (GE EPI). However …
MR imaging of human brain at 3.0 T: preliminary report on transverse relaxation rates and relation to estimated iron content
PURPOSE: To determine the transverse relaxation rates R2 and R2′ from several gray
matter regions and from frontal cortical white matter in healthy human brains in vivo and to …
matter regions and from frontal cortical white matter in healthy human brains in vivo and to …
Theory and application of static field inhomogeneity effects in gradient‐echo imaging
JR Reichenbach, R Venkatesan… - Journal of Magnetic …, 1997 - Wiley Online Library
The influence of local static magnetic field inhomogeneities on gradient‐echo imaging is
discussed and the underlying theoretical aspects are reviewed. A high‐resolution approach …
discussed and the underlying theoretical aspects are reviewed. A high‐resolution approach …
Comparison of 2D and 3D single-shot ASL perfusion fMRI sequences
Arterial spin labeling (ASL) can be implemented by combining different labeling schemes
and readout sequences. In this study, the performance of 2D and 3D single-shot pulsed …
and readout sequences. In this study, the performance of 2D and 3D single-shot pulsed …
Compensation of susceptibility-induced BOLD sensitivity losses in echo-planar fMRI imaging
R Deichmann, O Josephs, C Hutton, DR Corfield… - Neuroimage, 2002 - Elsevier
Gradient-echo echo-planar imaging is a standard technique in functional magnetic
resonance imaging (fMRI) experiments based on the blood oxygenation level-dependent …
resonance imaging (fMRI) experiments based on the blood oxygenation level-dependent …