Ge signa vh 1 3.0 t scanner

Participants lay supine in the GE Signa VH/I 3.0-T scanner (GE Healthcare, GE Asian Hub, Shanghai, China) with the head supported within a head coil. Their heads were fixed with the help of foam pillows that were belted over the forehead to minimize head movements. The gradient echo planar imaging sequence parameters used for acquisition of the fMRI images are listed below: repetition time = 3,000 ms; echo time = 35 ms; flip angle = 90°; field of view = 240 × 240 mm²; and acquisition matrix = 64 × 64, resulting in a voxel resolution of 3 mm × 3 mm × 3 mm. To ensure a steady state, we abandoned the images that were collected in the first 12 seconds. When the structural images were collected, a three-dimensional spoiled gradient-recalled acquisition sequence was used to acquire 1-mm-thick axial sections. The parameters are listed below: repetition time = 1,000 ms; echo time = 5 ms; flip angle = 200°; interslice space = 0 mm; field of view = 240 × 240 mm²; acquisition matrix = 256 × 256; number of excitations = 1.

All imaging data were obtained with a 3.0 T GE Signa VH/I 3.0-T scanner (GE Healthcare, GE Asian Hub, Shanghai, China) equipped with a 32-channel head coil. The subject’s head was held between a pair of cushions, one on each side of the head, to minimize head movements. fMRI data were measured with an echo-planar imaging sequence (repetition time/echo time = 3000/35 ms, field of view = 240 mm × 240 mm, 43 axial slices, acquisition matrix = 64 × 64, voxel size = 3.4 mm × 3.4 mm × 3.2 mm, flip angle = 90°). Structural imaging data were acquired with a multiecho MPRAGE T1-weighted pulse sequence (repetition time/echo time = 1000/5 ms, TI = 1200 ms, flip angle = 200°, field of view = 240 mm × 240 mm, acquisition matrix = 256 × 256, sagittal acquisition, spatial resolution = 1 × 1 × 1 mm³, interslice space = 0 mm).