Sleepy Brain Project MRI Protocol

The MRI data of the Sleepy Brain Project were acquired using a General Electric Discovery 3T MRI scanner. T1 structural images were scanned using a sagittal brain volume (BRAVO) sequence with the following values: repetition time (TR) = 6.4 s, echo time (TE) = 2.8 s, flip angle = 11°, 1 × 0.47 × 0.47 mm³ voxel size, 24-cm field of view, 1-mm slice thickness, and 3.58 min of acquisition time. Meanwhile, echo-planar images were acquired using the following settings: flip angle = 75°, TE = 30 ms, TR = 2.5 s, field of view = 28.8 cm, slice thickness = 3 mm, 2.25 × 2.25 × 3 mm³ voxel size, 49 slices, 192 scans, and a total duration of 8 min (Nilsonne et al., 2017 (link); Tamm et al., 2017 (link)).

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Long Z., Zhao J., Chen D, & Lei X. (2021). Age-related abnormalities of thalamic shape and dynamic functional connectivity after three hours of sleep restriction. PeerJ, 9, e10751.

Publication 2021

Discovery 3T MRI scanner

Brain Echo Electric Scans Sleepy

Corresponding Organization :

Other organizations : Southwest University

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Variable analysis

independent variables

Magnetic resonance imaging (MRI) scanning protocol

dependent variables

T1 structural images
Echo-planar images

control variables

General Electric Discovery 3T MRI scanner
Sagittal brain volume (BRAVO) sequence parameters (TR = 6.4 s, TE = 2.8 s, flip angle = 11°, voxel size = 1 × 0.47 × 0.47 mm^3, field of view = 24 cm, slice thickness = 1 mm, acquisition time = 3.58 min)
Echo-planar image acquisition parameters (flip angle = 75°, TE = 30 ms, TR = 2.5 s, field of view = 28.8 cm, slice thickness = 3 mm, voxel size = 2.25 × 2.25 × 3 mm^3, 49 slices, 192 scans, total duration = 8 min)

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