All participants were scanned on a Siemens 3.0 Tesla MRI scanner (Siemens, Erlangen, Germany) at South China Normal University (Guangzhou, China). We used headphones and foam pads to avoid interference of scanner noise and reduce participants’ head motion in the scan. Participants were instructed to close their eyes, clear their thoughts but not to fall asleep, and move as little as possible during the data acquisition. Structural images of T1-weighted images covering the entire brain were obtained in a sagittal orientation by employing magnetization prepared by rapid gradient echo sequence (MPRAGE) : repetition time (TR) = 2300 ms, echo time (TE) = 3.24 ms, flip angle (FA) = 9°, field of view (FOV) = 256 × 256 mm2, inversion time = 900 ms, matrix = 256 × 256, slices = 176, slice thickness = 1 mm and voxel size = 1 × 1 × 1 mm3. Whole brain T2*-weighted resting-state functional images were acquired for 8 min using an echo-planar imaging (EPI) sequence: TR = 2000 ms, TE = 30 ms, FA = 90°, FOV = 224 × 224 mm2, slices = 32, matrix = 64 × 64, slice thickness = 3.5 mm, voxel size = 3.5 × 3.5 × 3.5 mm3, 240 volumes, and interleaved slice ordering.
3.0 tesla mri scanner
Manufactured by Siemens
Sourced in Germany
The 3.0-Tesla MRI scanner is a medical imaging device that uses strong magnetic fields and radio waves to create detailed images of the inside of the human body. It is capable of generating high-resolution, three-dimensional images of organs, tissues, and structures within the body. The device operates at a field strength of 3.0 Tesla, which is higher than the typical 1.5-Tesla MRI scanners, enabling enhanced image quality and improved diagnostic capabilities.
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12 protocols using 3.0 tesla mri scanner
1
Resting-state fMRI of Healthy Participants
2
Multimodal Neuroimaging of Valsalva Response
3
Functional MRI Acquisition Protocol
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Imaging data were collected using a 3.0 Tesla MRI scanner (Siemens) with a 20-channel phased-array head coil and a bottom-up interleaved Echo Planar Imaging (EPI) sequence. For the experimental scan: TR = 2.1 s, TE = 30 ms, flip angle = 80°, FOV = 192 × 192 × 108 mm, matrix size = 64 × 64, number of volumes = 213, voxel size = 3 × 3 mm, slice thickness = 3 mm with no inter-slice gap and 36 slices were acquired. For the functional localiser scan: TR = 2 s, TE = 30 ms, flip angle = 80°, FOV = 192 × 192 × 108 mm, matrix size = 64 × 64, number of volumes = 227, voxel size = 3 × 3 mm, slice thickness = 3 mm with no inter-slice gap and 36 slices were acquired. A T1-weighted structural image was obtained for each participant (TR = 2.3 s, TE = 2.26 ms, flip angle = 8°, FOV = 256 × 256, voxel size = 1 × 1, slice thickness = 1 mm, number of slices = 176) and a T1-weighted FLAIR image (TR = 3 s, TE = 8.6 ms, flip angle = 150°, FOV = 192 × 192 mm, matrix size = 256 × 256, voxel size = 0.75 × 0.75 mm, slice thickness = 3.0 mm, number of slices = 36) was taken in the same plane as the EPI data, for co-registration of the functional data to the structural image.
4
High-Resolution Structural and Functional MRI
5
Resting-state fMRI of Healthy Subjects
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Imaging data of the primary cohort were collected using a 3.0 Tesla MRI scanner (Siemens Medical Systems, Erlangen, Germany) at the Second Affiliated Hospital of Xinxiang Medical University. Participants were instructed to stay awake with their eyes closed and not to think of anything in particular. T1‐weighted anatomical images were acquired by a three‐dimensional fast spoiled gradient‐echo sequence with the following parameters: TR = 1,900 ms; TE = 2.52 ms; flip angle = 90°; field of view = 250 × 250 mm2; matrix = 256 × 256, 176 axial slices; slice thickness = 1 mm, no gap. Resting‐state functional images were acquired using an echo‐planar imaging (EPI) sequence with the following parameters: TR = 2,000 ms; TE = 30 ms; flip angle = 90°; field of view = 220 × 220 mm2; matrix = 64 × 64, 33 axial slices; slice thickness = 3 mm, 0.6 mm gap; 240 volumes.
6
Resting-state fMRI Acquisition Protocol
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Rs-fMRI data were gathered utilizing a 3.0-Tesla MRI scanner (Siemens, Verio, Germany), with the echo planar imaging sequence and the following parameter settings: repetition time, 2.0 s; echo time, 0.025 s; field of view, 240 mm2; matrix, 64 × 64; flip angle, 90°; slice thickness, 4 mm; number of axial slices, 35; and number of volume, 180. Patients were told to close their eyes, avoid thinking about a specific issue, and to refrain from moving their head. To acquire T1-weighted structural images, a magnetization-prepared rapid gradient echo (MPRAGE) sequence was used, and the following parameters were applied: repetition time, 1.9 ms; echo time, 2.48 ms; field of view, 256 mm2; matrix, 256 × 256; flip angle, 9°; slice thickness, 1.0 mm; and number of sagittal slices, 176.
7
Non-Invasive Brain Connectivity Mapping
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Magnetic resonance imaging (MRI) scans were performed on a Siemens Medical Solutions 3.0-Tesla MRI scanner at SHMC. The T1 scans were used as an anatomical reference, while DTI was used to map neuronal tracts and evaluate brain WM properties. This was performed without sedation or contrast material.
8
3T MRI Brain Imaging Protocol
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Brain studies at UCLA and Case Western Reserve were performed using a 3.0-Tesla MRI scanner (Siemens, Magnetom, Erlangen, Germany). Side foam pads were used bilaterally to avoid head motion, and subjects laid supine during the scanning. High-resolution T1-weighted images were collected using a magnetization prepared rapid acquisition gradient-echo sequence (TR = 2200 ms; TE = 3.05 ms; inversion time = 1100 ms; FA = 10°; matrix size = 256×256; FOV = 220×220 mm2; slice thickness = 1.0 mm; slices = 176).
9
Multimodal MRI in Parkinson's Disease
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A 3.0-Tesla MRI scanner (Siemens, Germany) was used to collect the MRI data of all subjects and the patients with PD underwent MRI scanning in the off state. The participants were instructed to lie down, relax, keep their eyes closed, and stay awake during scanning. Their heads were fixed using sponge mats to control head movement, and earplugs were inserted in the ears to reduce noise. High-resolution T1-weighted images were acquired using the 3D magnetization-prepared rapid gradient-echo (3D-MPRAGE) sequence with the following conditions: repetition time (TR) = 1900 ms, echo time (TE) = 2.48 ms, flip angle (FA) = 9o, matrix size = 256 × 256, field of view (FoV) = 250 × 250 mm, slice number = 176, slice thickness = 1 mm, and slice gap = 0 mm. Resting-state functional images were acquired using an echo-planar imaging sequence, with TR = 2000 ms, TE = 25 ms, FA = 90o, matrix size = 64 × 64, FOV = 240 × 240 mm, slice number = 33, slice thickness = 4 mm, and slice gap = 0 mm.
10
Resting-state fMRI Acquisition Protocol
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Data acquisition was performed on a 3.0-Tesla MRI scanner (Siemens Medical Solutions, Erlangen, Germany) in the National Key Laboratory for Cognitive Neuroscience and Learning, Beijing Normal University. In particular, no medicine were taken for all participates before the MRI recordings. The rsfMRI data were collected using an echo-planar imaging (EPI) sequence with the following scanning parameters: TR = 2 s, TE = 30 ms, flip angle = 90°, FOV = 220 × 220 mm, in-plane matrix size = 64 × 64, number of slices = 33, slice thickness = 3.5 mm, and inter-slice gap = 0.6 mm. All participants were instructed to completely relax without thinking of special things, simply rest quietly with their eyes closed, remain still, and remain awake during the data recording. For each subject, the overall resting-state data acquisition lasted 8 min, resulting in 240 volumes. No subject dropped out of the experiment during the scanning.
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