Spiral‐in/out BOLD fMRI for increased SNR and reduced susceptibility artifacts

By Gary H. Glover, C. Law. Magnetic Resonance in Medicine, 2001

617 citations recorded by the source corpus.

Subfields: Cognitive Neuroscience, Radiology, Nuclear Medicine and Imaging

View Paper: https://www.semanticscholar.org/paper/e3f2fc2a6e132fe46a9a2154598ae3f18e156559

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Citations in the corpus

Development of functional and structural connectivity within the default mode network in young children (2010, methodology): “…0.5 mm skip) parallel to the AC–PC line and covering the whole brain were imaged with a temporal resolution of 2 seconds using a T2* weighted gradient echo spiral in-out pulse sequence (Glover and Law, 2001) with the following parameters: TR = 2000 ms, TE = 30 ms, flip angle = 80°, 1 interleave.”
Predictors of amygdala activation during the processing of emotional stimuli: a meta-analysis of 385 PET and fMRI studies. (2008, background): “Moreover, there are particular difficulties for imaging the amygdala region with functional magnetic resonance imaging (fMRI) on account of its size and magnetic resonance field inhomogeneities related to air-tissue interfaces (Glover and Law, 2001; LaBar et al., 2001).”
Integrating Memories in the Human Brain: Hippocampal–Midbrain Encoding of Overlapping Events (2008, methodology): “Functional images were collected using a T2*-weighted two-dimensional gradient echo spiral-in/out pulse sequence (TR = 1.5 s; TE = 30 ms; 1 interleave; flip angle = 70 ; FOV = 20 cm; 64 3 64 voxels; Glover and Law, 2001).”
Distributed Neural Representation of Expected Value (2005, methodology): “Functional scans of the entire brain were acquired every 2 s [repetition time (TR), 2 s] with a T2*-sensitive in/out spiral pulse sequence [echo time (TE), 40 ms; flip, 90°] specifically designed to minimize signal dropout at the base of the brain (Glover and Law, 2001).”
Abnormalities of Intrinsic Functional Connectivity in Autism Spectrum Disorders (2009, methodology): “A reverse spiral sequence (Glover and Law, 2001) (TR=2000 ms, TE=30 ms, flip angle=90°, FOV=22 cm, 64×64 matrix, 40 contiguous axial 3 mm slices) was used to collect 300 T2*weighted BOLD images.”
Effects of Mindfulness-Based Stress Reduction (MBSR) on Emotion Regulation in Social Anxiety Disorder (2010, methodology): “(B) A single block of asterisk counting. gradient echo spiral-in/out pulse sequence to obtain blood oxygenation level-dependent (BOLD) contrast (Glover & Law, 2001).”
Estimation of functional connectivity in fMRI data using stability selection-based sparse partial correlation with elastic net penalty (2011, positive): “5 mm skip) parallel to the AC–PC line and covering the whole brain were imaged with a temporal resolution of 2 s using a T2* weighted gradient echo spiral in-out pulse sequence (Glover and Law, 2001) with the following parameters: TR=2,000 ms, TE=30 ms, flip angle=80°, 1 interleave.”
Effects of model-based physiological noise correction on default mode network anti-correlations and correlations (2009, neutral): “A T2⁎-sensitive gradient echo spiral-in/out pulse sequence (Glover and Lai, 1998; Glover and Law, 2001) was used for functional imaging (TR = 2000 ms, TE = 30 ms, flip angle = 77°, matrix 64 × 64, FOV = 22 cm, same slice prescription as the anatomic images).”
Resting-state functional connectivity reflects structural connectivity in the default mode network. (2009, methodology): “Six subjects underwent an 8-min, task-free spiral in/out functional scan (Glover and Law 2001) with the following parameters: time repetition (TR) = 2.5 s; time echo (TE) = 40 ms; flip angle = 85°; slice thickness = 4 mm; skip = 1 mm; 30 slices.”
Influence of heart rate on the BOLD signal: the cardiac response function (2008, methodology): “A T2⁎-sensitive gradient echo spiral in/out pulse sequence (Glover and Lai, 1998; Glover and Law, 2001) was used for functional imaging (TR= 2000 ms, TE= 30 ms, flip angle = 77°, matrix 64 × 64, same slice prescription as the anatomic images).”
In the Eye of the Beholder: Individual Differences in Perceived Social Isolation Predict Regional Brain Activation to Social Stimuli (2009, methodology): “…Image Preprocessing and Analyses Spiral-in and spiral-out images were reconstructed first separately and then combined using a weighted-average algorithm that maximizes signal-to-noise ratio while reduc- ing signal loss (Preston, Thomason, Ochsner, Cooper, & Glover, 2004; Glover & Law, 2001).”
Neural predictors of purchases. (2007, methodology): “TE = 40 ms, flip = 90") designed to minimize signal dropout at the base of the brain (Glover and Law, 2001) (Supplement 3).”
Functional Imaging of Numerical Processing in Adults and 4-y-Old Children (2006, methodology): “Whole brain functional images were acquired using a gradient-recalled inward spiral pulse sequence [70,71] sensitive to BOLD contrast (TR, 1,500 ms; TE, 35 ms; FOV, 24 cm; image matrix, 64(2); a 1⁄4 62 8; voxel size, 3.”
Network Analysis of Intrinsic Functional Brain Connectivity in Alzheimer's Disease (2008, positive): “spiral in/out pulse sequence (TR = 2000 msec, TE = 30 msec, flip angle = 80u and 1 interleave) [44].”
Time-frequency dynamics of resting-state brain connectivity measured with fMRI (2009, positive): “A T2⁎-sensitive gradient echo spiral-in/out pulse sequence (Glover and Lai, 1998; Glover and Law, 2001) was used for functional imaging (TR = 2000 ms, TE = 30 ms, flip angle = 77°, matrix 64 × 64, FOV = 22 cm, same slice prescription as the anatomic images).”