Functional and structural data were collected with a Bruker BioSpin MedSpec 4-T scanner (Bruker BioSpin GmbH, Rheinstetten, Germany) while participants lay in the scanner and viewed the visual stimuli through a mirror system. Data collection was conducted at the Center for Mind/Brain Sciences (CIMeC), University of Trento, using a USA Instruments 8-channel phased-array head coil. Functional images were acquired using echo planar (EPI) T2*-weighted scans. Acquisition parameters were: repetition time (TR) of 2 s, an echo time (TE) of 33 ms, a flip angle (FA) of 73°, a field of view (FoV) of 192 mm, and a matrix size of 64 × 64. Total functional acquisition consisted of 796 volumes, over 4 runs, each of 34 axial slices (which covered the whole brain) with a thickness of 3 mm and gap of 33% (1 mm). High-resolution (1 × 1 × 1 mm) T1-weighted MPRAGE sequences were also collected (sagittal slice orientation, centric phase encoding, image matrix = 256 × 224, field of view = 256 × 224 mm, 176 slices with 1-mm thickness, GRAPPA acquisition with acceleration factor = 2, duration = 5.36 min, repetition time = 2700, echo time = 4.18, TI = 1020 ms, 7° flip angle).
Biospin medspec 4 t scanner
Manufactured by Bruker
Sourced in Germany
The BioSpin MedSpec 4-T scanner is a magnetic resonance imaging (MRI) system designed for medical applications. It operates at a field strength of 4 Tesla, providing high-resolution imaging capabilities. The core function of this device is to acquire and generate detailed images of the human body for diagnostic and research purposes.
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5 protocols using biospin medspec 4 t scanner
1
Functional and Structural Brain Imaging
2
Multimodal Brain Imaging Protocol
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Functional and structural data were collected with a Bruker BioSpin MedSpec 4-T scanner (Bruker BioSpin GmbH, Rheinstetten, Germany) while participants lay in the scanner and viewed the visual stimuli through a mirror system. Data collection was conducted at the center for Mind/Brain Sciences (CIMeC), University of Trento, using a USA Instruments 8-channel phased-array head coil. Functional images were acquired using echo planar (EPI) T2 * -weighted scans. Acquisition parameters were: repetition time (TR) of 2 s, an echo time (TE) of 33 ms, a flip angle (FA) of 73°, a field of view (FoV) of 192 mm, and a matrix size of 64 ×64. Total functional acquisition consisted of 796 vol over 4 runs, each of 34 axial slices (which covered the whole brain) with a thickness of 3 mm and gap of 33% (1 mm). High-resolution (1 ×1 ×1 mm) T1-weighted MPRAGE sequences were also collected (sagittal slice orientation, centric phase encoding, image matrix = 256 × 224, field of view = 256 × 224 mm, 176 slices with 1-mm thickness, GRAPPA acquisition with acceleration factor = 2, duration = 5.36 min, repetition time = 2700, echo time = 4.18, TI = 1020 ms, 7° flip angle).
3
Multimodal Brain Imaging Protocol
4
fMRI Imaging of Object Category Processing
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Imaging data were acquired using a BioSpin MedSpec 4T scanner (Bruker) with an eight-channel coil. Functional data were obtained with an echo-planar 2D imaging sequence (repetition time TR: 2000ms; echo time TE: 33ms; flip angle: 73º; slice thickness: 3 mm; gap: 0.99 mm, with 3x3 inplane resolution and 34 slices). Volumes were acquired in ascending interleaved order of slice acquisition.
[2 column fitting] subjects were presented with four consecutive pictures of the same object category in a 4s object category mini-block. Three 4s category-level mini-blocks (e.g. cello mini-block, swing set miniblock, pinball machine mini-block) were presented sequentially in a 12s condition-level main block (e.g. large motor-relevant objects block). The task for participants was to detect when a red frame surrounded one of the objects, which happened once per 12s block.
[2 column fitting] subjects were presented with four consecutive pictures of the same object category in a 4s object category mini-block. Three 4s category-level mini-blocks (e.g. cello mini-block, swing set miniblock, pinball machine mini-block) were presented sequentially in a 12s condition-level main block (e.g. large motor-relevant objects block). The task for participants was to detect when a red frame surrounded one of the objects, which happened once per 12s block.
5
Functional Neuroimaging with 4T MRI
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Subjects were scanned in a Bruker BioSpin MedSpec 4T scanner at the Center of Mind/Brain Sciences (CIMeC), University of Trento. T2*-weighted scans using echo planar imaging were used to collect data for all functional scans from 37 sequential axial slices (TR = 2200ms, TE = 30ms, FA = 76°, FOV = 192mm, 3mm slice thickness, voxel size = 3x3mm). These were co-registered onto a T1weighted 3D MPRAGE anatomical image (TR = 2700ms, TE = 4.18ms, 176 axial slices, FOV = 256mm, 1mm slice thickness, voxel size = 1x1mm), from each participant.
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