Ge discovery 750 scanner

Subjects will be scanned on a 3-T GE-Discovery 750 scanner at Wenzhou Medical University (WMU), China, equipped with the following: for anatomical T1-MRI data, repetition time (TR)TR/echo time (TE) = 7.7/3.4 ms, flip angle = 12°, field of view (FOV) = 256 mm × 256 mm, resolution = 256 × 256, slice per volume = 176, slice thickness = 1 mm; for RS-fMRI data, TE/TR = 30/2500 ms, voxel size = 3.4375 × 3.4375 × 3.5 mm³, in-plane resolution = 64 × 64, number of volumes = 230, and flip angle = 90°; and for DTI data, TR/TE = 8000/80 ms, flip angle = 90°, FOV = 256 mm × 256 mm, resolution = 128 × 128, slice thickness = 2 mm, slices per volume = 75, 23 volumes with b = 1000 s/mm² and 49 volumes with b = 2000 s/mm².

All subjects were scanned on a 3.0 T GE-Discovery 750 scanner with the following parameters: for anatomical T1-MRI data: TR/TE = 7.7/3.4 ms, flip angle = 12°, FOV = 256 × 256 mm², resolution = 256 × 256, number of slices = 176, isometric voxel size = 1 × 1 × 1 mm³; for fMRI data: TE/TR = 30/2500 ms with interleaved ordering, voxel size = 3.4375 × 3.4375 × 3.5 mm³, in-plane resolution = 64 × 64, number of volumes = 230, and flip angle = 90°.

For all participants, MRI were performed within 6 days of admission. Images were obtained with two 3T MRI scanners, GE Discovery 750 scanner (GE Healthcare, Milwaukee, Wis) and Siemens verio scanner (Siemens, Erlangen, Germany). The MRI ICH protocols are similar in two MRI scanners, including the following sequences: whole brain T1 weighted image (T1W; repetition time/echo time 1,900/9.4 ms; 5 mm slice thickness, 6 mm interslice gap), T2-weighted image (T2W; repetition time/echo time 6,000/97 ms, 5 mm slice thickness, 6 mm interslice gap), and fluid-attenuated inversion recovery (FLAIR; repetition time/echo time 7,800/91 ms, inversion time 2,200 ms, 5 mm slice thickness, 6 mm interslice gap) and susceptibility-weighted imaging (SWI; repetition time/echo time 28/20 ms, flip angle 15°, 1.6 mm slice thickness, 0.3 mm interslice gap).