Functional MRI data were acquired at the CIREN facility using a 3 T MRI scanner (GE, DISCOVERY MR750 3 T MR System, United Sates). We acquired anatomical MRI data using a high-resolution 3-D T1-weighted gradient sequence (field of view = 256 mm, slice thickness = 1 mm, matrix size = 256 x 256 mm, resolution = 1 mm3, flip angle = 11°, repetition time=8.2 ms, echo time=3.2 ms, inversion time = 400 ms) and an rs-fMRI using a T2*-weighted echo-planar imaging (EPI) sequence (field of view = 192 mm, slice thickness = 3 mm, 42 slices, matrix size = 64 x 64 mm, resolution = 3 × 3 x 3 mm3, flip angle = 90°, repetition time=2000 ms, echo time=23 ms). During the rs-fMRI sequence, the participants were asked to lay still with their eyes closed, but not to fall asleep, instead to try to think of nothing at all, and in the case of a sticky thought, to think of a starry sky.
Discovery mr750 3t mr system
Manufactured by GE Healthcare
The Discovery MR750 3T MR system is a magnetic resonance imaging (MRI) scanner developed by GE Healthcare. It operates at a field strength of 3 Tesla, providing high-quality imaging capabilities for a range of clinical applications. The system is designed to deliver consistent and reliable performance in diagnostic imaging.
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Lab products found in correlation
4 protocols using discovery mr750 3t mr system
1
Resting-state fMRI Acquisition and Preprocessing
2
MRI Acquisition of Phantom and Knee
3
Magnetoencephalography in Resting-State
4
Magnetoencephalography in Resting-State
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Participants underwent MEG scanning in the eyes-closed state in an upright position using a 306-channel (204 planar gradiometers and 102 magnetometers) whole-head biomagnetometer system (VectorviewTM, Elekta-Neuromag Ltd., Helsinki, Finland) in a magnetically shielded room (ETS-Lindgren, Eura, Finland) located at Froedtert Hospital, Milwaukee, WI, USA. The MEG data were collected at a sampling rate of 2 kHz using a high-pass filter with a cutoff frequency of 0.03 Hz. The position of the participant’s head relative to the sensors was determined using four head-position indicator coils attached to the scalp surface. Three anatomical landmarks (nasion and left and right pre-auricular points) and the head shape were digitized using a Polhemus Fastrak system (Polhemus; Colchester, VT) for alignment with the anatomical MRI. Task stimuli were presented using E-prime 2.0 Professional (Psychology Software Tools, Inc., Pittsburgh, PA). The audio stimuli were presented at normal listening levels (60 dB above normal hearing levels) via a MEG-compatible headphone (TIP-300, Nicolet Biomedical, Madison, WI). The anatomical MRI of each patient was acquired with a GE Healthcare Discovery MR750 3T MR system. The high-resolution T1 image was acquired with a matrix size of 320×320×230 and a spatial resolution of 0.8×0.8×0.8 mm.
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