Functional images were acquired on a Siemens TRIO 3.0 T MRI system (Siemens, Erlangen, Germany) equipped with a 12-channel head coil. BOLD-sensitive functional images were acquired using a single-shot gradient EPI sequence (echo time/repetition time = 34/1850 ms), 34 axial slices in ascending order, slice gap = 0.6 mm, field of view = 208 mm, flip angle = 90 degrees, voxel size = 3.25 × 3.25 × 3.60 mm3). High-resolution anatomical images were acquired using a MPRAGE sequence (echo time = 4.15 msec, voxel size = 1 × 1 × 1 mm3, 192 sagittal slices, field of view = 256).
Trio 3.0 t mri system
Manufactured by Siemens
Sourced in Germany
The TRIO 3.0 T MRI system is a high-field magnetic resonance imaging (MRI) scanner developed by Siemens. It operates at a magnetic field strength of 3.0 Tesla, which provides high-quality imaging for a variety of clinical applications. The system is designed to deliver precise and detailed images of the human body, enabling healthcare professionals to diagnose and monitor various medical conditions.
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8 protocols using trio 3.0 t mri system
1
fMRI Acquisition Protocol at 3T
2
Functional MRI Imaging Protocol
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Images were acquired on a Siemens TRIO 3.0T MRI system with a 32-channel phased-array head coil at the Functional Neuroimaging Unit in Montreal. Functional data were recorded using a T2* weighted gradient echo-planar imaging (EPI) sequence [repetition time (TR) = 2650 ms, echo time (TE) = 30.0 ms, flip angle = 90°, matrix size = 64 × 64]. Gradient echo phase and magnitude field maps were then acquired (45 slices, matrix size = 64 × 64, slice thickness = 3 mm, TR = 476 ms, TE short = 4.92 ms, TE long = 7.38 ms, flip angle = 60°) for the correction of image distortions and the improvement of co-registration accuracy. A T1-weighted structural scan was then acquired with an MPRAGE sequence (three-dimensional, spoiled gradient echo sequence; 176 slices, slice thickness = 1.00 mm, TR = 2300.0 ms, TE = 2.98 ms, flip angle = 9°). There was an upgrade to the MRI system during the study (MRI Siemens 3T Prisma fit). An independent-sample t-test comparing all participants in the scanner before the update (n = 40; 23 in the AUTc group and 17 in the TYP group) to all participants in the scanner after the update (n = 10; four in the AUTc group and six in the TYP group) did not show any significant difference in brain activation (visualised using p <.001, unc., k = 30 as a threshold). Nevertheless, we still controlled for the update with a covariable added through all fMRI analyses.
3
Quantifying Coronary Artery Stenosis via MRI
4
Functional and Structural MRI Acquisition
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MRI data were acquired on a Siemens TRIO 3.0-T MRI system (Siemens, Erlangen, Germany). A blood oxygen level-dependent (BOLD) sensitive T-2*-weighted echo planar imaging (EPI) gradient-echo sequence with the following parameters was acquired: TR = 3000 ms; TE = 30 ms; flip angle = 90°; matrix = 64 × 64; FOV = 192 × 192 mm2; and slice thickness = 3 mm. After acquiring the functional images, anatomical images were acquired using a transverse magnetization prepared rapid acquisition with gradient echo (MP-RAGE) T1-weighted sequence (TR = 2000 ms; TE = 4.38 ms; flip angle = 8°; matrix = 224 × 256; FOV = 246 × 230 mm2; slice thickness = 1 mm).
5
Resting-state fMRI Acquisition Protocol
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In the study, a Siemens Trio 3.0 T MRI system (Siemens, Munich, Germany) was used to extract rs-fMRI data. All of the subjects were instructed to lie still, keep awake without thinking anything or falling asleep during scanning. Earplugs were offered to minimize scanning noise and protect children’s hearing, and foam pads were used to limit head motion. Single-shot gradient echo imaging (GRE-EPI) sequence was used to collect rs-fMRI data (repetition time (TR) = 2000ms; echo time (TE) = 30ms; slices = 30; thickness = 4 mm; gap = 0.4 mm; field of view (FOV) = 240 mm × 240 mm; in-plane resolution = 64 × 64 and flip angle (FA) = 90°). T1-weighted images were required by using three-dimensional magnetization-prepared rapid acquisition gradient echo (3D MPRAGE) protocol. (TR = 2300ms, TE = 2.03ms, inversion time = 900ms, thickness = 1 mm, gap = 0 mm, FOV = 256 mm × 256 mm, matrix size = 256 × 256 and FA = 9°)
6
Resting-state fMRI Brain Imaging Protocol
7
Functional MRI Acquisition and Preprocessing for Autism Research
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A Siemens TRIO 3.0 T MRI system with a 32-channel phased-array head coil was used to acquire the fMRI images at the Functional Neuroimaging Unit in Montreal (Canada). Functional data were recorded using a T2*weighted gradient echo-planar imaging (EPI) sequence [repetition time (TR) = 2,650 ms, echo time (TE) = 30.0 ms, flip angle = 90°, matrix size = 64 × 64]. Then, for the correction of image distortions and the improvement of co-registration accuracy, gradient echo phase and magnitude field maps were acquired (45 slices, matrix size = 64 × 64, slice thickness = 3 mm, TR = 476 ms, TE short = 4.92 ms, TE long = 7.38 ms, flip angle = 60°). An MPRAGE sequence was used to obtain a T1-weighted structural image (three-dimensional, spoiled gradient echo sequence; 176 slices, slice thickness = 1.00 mm, TR = 2,300.0 ms, TE = 2.98 ms, flip angle = 9°). The MRI system (MRI Siemens 3 T Prisma fit) was upgraded during the course of the study. An independent-sample t-test comparing all participants before the scanner update (n = 47; 27 in the AUTc group and 20 in the TYP group) to all participants after the update (n = 12; 4 in the AUTc group and 8 in the TYP group) revealed subtle differences in brain activation (threshold settled at P < 0.001, uncorrected, k = 30). Thereby, we added a covariate to control for the scanner update in all fMRI analyses.
8
Functional MRI Data Acquisition Protocol
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