Hippocampal volume (HV) and estimated intracranial volume (eICV) were performed from T1-weighted MRI acquired with a Siemens Trio 3.0 T or 1.5 T scanner. Regional volume estimates were processed using the Freesurfer software (https://surfer.nmr.mgh.harvard.edu ). HV was adjusted for eICV using the following equation: Adjusted HV (HVa) = Raw HV – b (eICV – Mean eICV), where b is the regression coefficient when HV is regressed against eICV.
Trio 3.0t
Manufactured by Siemens
Sourced in Germany
The TRIO 3.0T is a magnetic resonance imaging (MRI) system manufactured by Siemens. It operates at a magnetic field strength of 3 Tesla, which is a commonly used strength for clinical MRI. The TRIO 3.0T system is designed to acquire high-quality medical images for diagnostic purposes.
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Lab products found in correlation
5 protocols using trio 3.0t
1
Hippocampal Volume Adjustment for MRI
2
Structural Brain MRI Processing
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Structural brain magnetic resonance imaging (MRI) was obtained through a Siemens Trio 3.0 T or Vision 1.5-T imaging system. The image processing frameworks Free-surfer software (version 4.3 and 5.1) were applied to estimate the regional volume based on MRI images [26 (link)]. The whole brain volume and several regional brain volumes (ventricles, hippocampus, middle temporal lobe, fusiform gyrus, entorhinal cortex) were utilized in our analyses.
3
MRI Protocols for Sacroiliac Joint Imaging
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Both groups underwent bilateral sacroiliac joint MRI non-enhanced scanning, adopted Siemens Trio 3.0T superconducting magnetic resonance scanner and 6 channels body coil. Horizontal axis and oblique coronal position (parallel to the dorsal line S1 and S3) were scanned from front to back. MRI protocols of sacroiliac joint imaging for sacroiliitis traditionally include precontrast T1-weighted, FST2W or STIR images in axial oblique and coronal oblique planes [4 (link)]. Scanning sequence used: Fast spin wave T1 weighted sequence (TSE-T1WI) cross-sectional scan; Rapid spin echo fat suppression T2 weighted sequences (TSE-FS-T2WI) in cross-sectional and oblique coronal scans; Short time reverse sequence (STIR) oblique coronal scan; and multi-echo three-dimensional interpolated water-fat separation fast disturbing phase sequence (Dixon-vibe) oblique coronal scan. The scanning parameters were shown in Table 1 .
MRI scanning parameters of bilateral sacroiliac joint
| Sequence | TR/ms | TE/ms | Thickness/ms | Matrix | FOV/mm |
|---|---|---|---|---|---|
| Dixon-VIBE cor | 9.1 | 1.23/2.48/3.73/4.98/6.23/7.48 | 2 | 256×250 | 408×357 |
| TSE-T1WI tra | 974 | 20 | 3 | 512×410 | 390×390 |
| TSE-FS-T2WI tra | 4500 | 78 | 3 | 512×410 | 400×319 |
| TSE-FS-T2WI cor | 4500 | 78 | 3 | 512×512 | 450×366 |
| STIR cor | 3800 | 308 | 5 | 320×300 | 390×390 |
4
Resting-State fMRI Acquisition Protocol
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Imaging data were obtained from a Siemens TRIO 3.0T full-body MRI scanner in the Key Laboratory of Cognition and Personality (SWU), Ministry of Education. The anatomical images were acquired using a sagittal 3D gradientecho T1-weighted sequence (TR/TE = 2530 ms/3.39 ms; flip angle = 7°; FoV = 256 × 256 mm 2 ; matrix size: 256 × 256; voxel size: 1.3 × 1.0 × 1.3 mm 3 ; 128 slices at a thickness of 1.33 mm). A gradient-echo echo-planar (EPI) sequence was used to collect resting-state fMRI images (TR/ TE = 2000 ms/30 ms; flip angle = 90°; FoV = 200 × 200 mm 2 ; matrix size = 64 × 64; voxel size = 3.1 × 3.1 × 3.0 mm 3 , 33 slices at a thickness of 3.0 mm) and it was used to acquire 240 images. Participants were explicitly instructed to relax without falling asleep, to keep their eyes open in darkness and to keep their heads steady during all scans.
5
Resting-state fMRI Data Acquisition Protocol
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Imaging data were collected on a Siemens TRIO 3.0T MRI scanner (Magnetom Verio, Siemens, Erlangen, Germany) in the National Key Laboratory for Cognitive Neuroscience and Learning, Beijing Normal University. The resting-state functional MRI (rsfMRI) acquisition parameters were acquired by a gradient echo-planar imaging (EPI) sequence as follows: time repetition (TR) = 2000 ms, time echo (TE) = 30 ms, flip angle (FA) = 90°, field of view (FOV) = 220 × 220 mm, repetition time matrix = 64 × 64, number of slices = 33, slice thickness = 3.5 mm, gap = 0.7 mm, and total 240 volumes in approximately 8 min. Participants were instructed to keep their eyes closed, think about nothing, and not fall asleep. High resolution three-dimensional T1-weighted sequence were acquired as follows: TR = 2530 ms, TE = 3.39 ms, slice thickness = 1.33 mm, gap = 0 mm, in-plane resolution = 256 × 256, FOV = 256 × 256 mm, inversion time (TI) = 1100 ms, and FA = 7° and 128 sagittal slices.
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