MRI data were acquired using a 3.0-T Siemens Magnetom Verio MRI System (Siemens Medical, Erlangen, Germany) at the Department of Radiology, First Affiliated Hospital, Guangxi University of Chinese Medicine, Nanning, Guangxi, China. To avoid head movement, each subject’s head was immobilized by foam pads in a standard eight-channel birdcage head coil. FMRI images were acquired with a single-shot gradient-recalled echo planar imaging (EPI) sequence with the parameters as following: repetition time (TR)/echo time (TE) = 2000 ms/30 ms, flip angle = 90°, field of view (FOV) = 240 mm × 240 mm, matrix size = 64 × 64, slice thickness = 5 mm and slices = 31. High-resolution T1-weighted images were then obtained with a volumetric three-dimensional spoiled gradient recall sequence with the parameters as following: TR/TE = 1900 ms/2.22 ms, FOV = 250 mm × 250 mm, matrix size: 250 × 250, flip angle = 9°, slice thickness = 1 mm and 176 slices.
Magnetom verio mri system
Manufactured by Siemens
Sourced in Germany
The Magnetom Verio MRI System is a 3 Tesla magnetic resonance imaging scanner manufactured by Siemens. It is designed to provide high-quality imaging for a wide range of clinical applications.
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Lab products found in correlation
13 protocols using magnetom verio mri system
1
Neuroimaging Protocol for Brain Connectivity
2
Functional MRI Brain Imaging Protocol
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MRI data were acquired using a 3.0 Tesla Siemens Magnetom Verio MRI System (Siemens Medical, Erlangen, Germany) at the Department of Radiology, First Affiliated Hospital, Guangxi University of Chinese Medicine, Nanning, Guangxi, China. To avoid head movement, each subject’s head was immobilized by foam pads in a standard 8-channel birdcage head coil. FMRI images were acquired with a single-shot gradient–recalled echo planar imaging (EPI) sequence with the parameters as following: repetition time (TR)/echo time (TE) = 2000 ms/30 ms, flip angle = 90°, field of view (FOV) = 240 mm × 240 mm, matrix size = 64 × 64, slice thickness = 5 mm and slices = 31. High resolution T1-weighted images were then obtained with a volumetric three-dimensional spoiled gradient recall sequence with the parameters as following: TR/TE = 1900 ms/2.22 ms, FOV = 250 mm × 250 mm, matrix size: 250 × 250, flip angle = 9°, slice thickness = 1 mm and 176 slices.
3
Resting-State fMRI Acquisition and T1-Weighted Imaging
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MRI data were acquired on a 3.0 T Siemens Magnetom Verio MRI System (Siemens Medical, Erlangen, Germany), using a standard head coil. During the scan, all subjects were instructed to keep their eyes closed and stay awake, stay still, and not to think of anything in particular. Foam pillows were used for minimizing movement between the instrument and each subject’s head. Rs-fMRI data were acquired by a single-shot gradient-recalled echo planar imaging (EPI) sequence: repetition time (TR) = 2000 ms; echo time (TE) = 30 ms; flip angle (FA) = 90°; field of view (FOV) = 240 mm × 240 mm; matrix size: 64 × 64; slice thickness = 5 mm (no-gap); 31 slices and 180 volumes. High-resolution T1-weighted images were then obtained with magnetization-prepared rapid acquisition gradient echo sequences (3D MPRAGE) with the following parameters: TR = 1900 ms; TE = 2.22 ms, FOV = 250 mm × 250 mm, matrix size: 256 × 256, FA = 9°, slice thickness = 1 mm and 176 slices.
4
Neuroimaging Protocol for 3T MRI Acquisition
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All MRIs were performed with a 3.0T Siemens Magnetom Verio MRI System (Siemens Medical, Erlangen, Germany). To avoid head movement, each participant’s head was immobilized by foam pads in a standard 8-channel birdcage head coil. BOLD-fMRI images were obtained with a single-shot gradient-recalled echo planar imaging (EPI) sequence with the following parameters: repetition time (TR) / echo time (TE) = 2000 ms/30 ms, field of view (FOV) = 240 × 240 mm, flip angle = 90°, matrix size = 64 × 64, slice thickness = 5 mm, and slices = 31. High-resolution T1-weighted images were then acquired with a volumetric 3D spoiled gradient recall sequence with the following parameters: TR/TE = 1900 ms/2.22 ms, FOV = 250 mm × 250 mm, flip angle = 9°, matrix size: 256 × 256, slice thickness = 1 mm, and 176 slices.
5
High-Resolution Diffusion MRI Protocol
6
Resting-State and Task-Based fMRI Protocol
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A Siemens MAGNETOM Verio MRI system (3 T, Erlangen, Germany) with a 12 channel head coil was used to obtain T2*-weighted echo-planar images with BOLD contrast. A total of 527 volumes during resting state, 407 volumes during training, and 781 volumes during task performance of 27, 3.5-mm-thick axial slices were acquired. Scanning was performed sequentially (ascending) with a between-slice gap of 0.87 mm, repetition time of 1.5 s, echo time of 30 ms, flip angle 80°, matrix size of 64 × 64, and voxel size of 3 × 3 × 3.5 mm3.
7
Multimodal Neuroimaging Protocol for Resting-State Connectivity
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Functional and structural MRI data were acquired using a 3T MAGNETOM Verio MRI system (Siemens, Erlangen, Germany) equipped with an 8-channel head coil. Participants’ heads were cushioned with attached earmuffs. Participants were instructed to stare at a cross fixation during resting-state fMRI to prevent over-movement of their eyes. Two hundred frames (volumes) of resting-state functional images were obtained using a T2*-weighted gradient echo-planar imaging sequence (repetition time [TR] = 2000 ms, echo time [TE] = 30 ms, 28 slices, slice thickness = 4 mm, no gaps between slices, flip angle = 90°, voxel size = 2 × 2 × 4 mm, image matrix = 124 × 124, field of view [FOV] = 192 mm). Structural images were acquired using a three-dimensional T1-weighted gradient echo sequence (TR = 2300 ms, TE = 2.52 ms, slice thickness = 1 mm, flip angle = 9°, voxel size = 1 × 1 × 1 mm, image matrix = 224 × 224, FOV = 256 mm2).
8
Comprehensive MRI Protocol for Body Composition
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Whole-body MRI and proton MRS (1H-MRS) studies were performed on a 3T MAGNETOM Verio MRI system (Siemens AG Healthcare Sector, Erlangen, Germany). Women attended after an overnight fast, were positioned in the magnet on their left lateral side, and data from abdomen, liver, quadriceps and paraspinal tissue was acquired using a combination of spine and body matrix coil elements.
For 1H-MRS measurement of intramyocellular lipid (IMCL), single voxel (2 cm3) spectra localised to the right quadriceps muscle were acquired using a PRESS sequence (TR 5,000 ms/TE 30 ms) [32 (link)]. The hepatic fat fraction was derived using the Dixon method [14 (link), 33 (link)]. Abdominal volume was estimated from 20 × 2 mm slices above the left renal pelvis.
To derive FM, adipose tissue volumes were analysed in triplicate using SliceOmatic v4 (TomOvision, Magog, QC, Canada). 1H-MRS analyses used the AMARES algorithm in jMRUI software version 3 (www.jmrui.eu/ ) [34 (link), 35 (link)].
For 1H-MRS measurement of intramyocellular lipid (IMCL), single voxel (2 cm3) spectra localised to the right quadriceps muscle were acquired using a PRESS sequence (TR 5,000 ms/TE 30 ms) [32 (link)]. The hepatic fat fraction was derived using the Dixon method [14 (link), 33 (link)]. Abdominal volume was estimated from 20 × 2 mm slices above the left renal pelvis.
To derive FM, adipose tissue volumes were analysed in triplicate using SliceOmatic v4 (TomOvision, Magog, QC, Canada). 1H-MRS analyses used the AMARES algorithm in jMRUI software version 3 (
9
Multimodal MRI Acquisition Protocol
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Images were acquired using a 3.0 Tesla Siemens Magnetom Verio MRI System (Siemens Medical, Erlangen, Germany) at the Department of Radiology, First Affiliated Hospital, Guangxi University of Chinese Medicine, Nanning, Guangxi, China. To reduce head movement, each subject’s head was fixed by foam pads in a standard 8-channel birdcage head coil. Functional images were acquired with a single-shot gradient–recalled echo planar imaging (EPI) sequence with the parameters: repetition time (TR)/echo time (TE) = 2000/30 ms, Flip angle = 90°, field of view (FOV) = 240 mm×240 mm, matrix size = 64 × 64, slice thickness = 1 mm and slices = 31. High resolution T1-weighted images were then collected with a volumetric three-dimensional spoiled gradient recall sequence with the parameters: TR/TE = 1900/2.22ms, FOV = 250 mm×250 mm, matrix size: 250 × 250, flip angle = 9°, slice thickness = 1 mm and 176 slices).
10
Evaluating Verbal Memory Performance in Quiet and Noisy Environments
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A backward recall task (BRT) was used to assess behavioral performance. This task was specifically chosen as it requires maintenance and manipulation of verbal auditory information (Donolato et al. 2017) (link). Participants were required to listen carefully to four consecutive words and immediately recall those words orally in reverse order of presentation. In every sequence, the words stimuli were presented for 4 seconds, and participants were given 4 seconds afterward to respond. To avoid memory or repetition effect, no word sequence was repeated within each condition. Additionally, the order of the word sequences was randomized across conditions. Figure 1 illustrates the experimental task paradigm. The experimental task was first performed in a quiet sound-treated room without the presence of background noise (referred to as the "quiet" condition thereafter) to obtain a baseline behavioral score for every participant. This baseline score was later compared with the score obtained in the noise conditions to determine whether behavioral performance decreased or increased in the presence of noise. The task was performed on a separate day inside a 3 Tesla Siemens Magnetom Verio MRI system equipped with functional imaging capabilities. Participants were equipped with headphones for transmission of binaural auditory stimuli and noise attenuation.
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