Magnetic resonance (MR) images were acquired at the Alberta Children’s Hospital Diagnostic Imaging Suite with a 3.0 Tesla General Electric MR750w MRI scanner (GE Healthcare, Waukesha, WI, USA) and a 32-channel head coil. High-resolution anatomical T1-weighted fast spoiled gradient echo (FSPGR) images were acquired in the axial plane [minimum of 166 slices, no skip; voxel size = 1.0 mm isotropic; repetition time (TR) = 8.5 ms; echo time (TE) = 3.2 ms; flip angle = 11o; matrix = 256 × 256]. T2-weighted images were acquired in the axial plane [36 slices, no skip; voxel size = 0.45 × 0.45 mm; slice thickness = 3.6 mm; TR/TE = 6187/80 ms; matrix = 512 × 512]. Diffusion-weighted images (DWI) were acquired in 32 non-collinear directions (b = 750 s/mm2, 3 volumes using b = 0 s/mm2, voxels = 2.2 mm isotropic, duration = 6 min, TR/TE = 11.5 s/70 ms).
Mr750w mri scanner
Manufactured by GE Healthcare
Sourced in United States
The MR750w MRI scanner is a magnetic resonance imaging system designed and manufactured by GE Healthcare. It is a wide-bore MRI scanner that utilizes a 1.5 Tesla superconducting magnet to generate high-quality images of the human body. The system is capable of performing a variety of MRI imaging techniques and procedures.
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Lab products found in correlation
3 protocols using mr750w mri scanner
1
Multimodal Brain Imaging Protocol
2
MRI and QSM Imaging of Pediatric Participants
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Participants completed an MRI scan on a 3T GE MR750w MRI scanner at the Alberta Children’s Hospital using a 32-channel head coil. The imaging protocol included a T1-weighted anatomical scan acquired using a 3D FSPGR sequence with TI = 600 ms, TR = 8.2 ms, 0.8 mm isotropic resolution, and total scan time of 5:38 min. QSM images were acquired using a 3-dimensional spoiled gradient recalled sequence with the acquisition parameters: repetition time (TR) = 56.8 ms, Echo Time (TE) = 4.5 ms to 52.2 ms for a total of 10 echoes with 5.3 ms spacing between each echo, field of view = 240 × 240 × 182.4 mm3, acquired voxel size = 0.94 × 1.17 × 1.90 mm3, reconstructed voxel size = 0.94 × 0.94 × 1.90 mm3, flip angle = 10°, acceleration factor = 2.5, and total scan time of 5:14 min.
3
Neuroimaging Protocols for Resting-State fMRI
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Neuroimaging was performed using two 3.0 Tesla scanners. The Alberta Children's Hospital Diagnostic Imaging Suite utilized a General Electric MR750w MRI scanner with a 32-channel head coil. T1-weighted fast spoiled gradient echo images were acquired in the axial plane [166 contiguous slices; voxels = 1.0 mm isotropic; repetition time (TR) = 8.5 ms; echo time (TE) = 3.2 ms]. The Holland-Bloorview cohort used a Siemens Prisma scanner with a 20-channel head coil to acquire 3D Magnetization-Prepared Rapid Gradient-Echo (MPRAGE) T1-weighted images obtained in the sagittal plane [192 contiguous slices, voxel size = 1 mm isotropic, TR/TE = 2.3 s/3.0 ms]. On both scanners, RS-fMRI sequences were obtained using 150 T2*-weighted whole brain echo planar volumes (36 contiguous axial slices; voxels = 3.6 mm isotropic; TR/ TE = 2000/30 ms; duration 5 min). During RS-fMRI scanning participants were asked to fixate on a central cross. Differences in FC measurements between scanners were statistically tested and scanner was also used as a covariate.
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