20 channel coil

Manufactured by Siemens

Sourced in Germany

The 20-channel coil is a specialized piece of lab equipment designed for magnetic resonance imaging (MRI) applications. It features 20 individual radio frequency (RF) receiver channels, allowing for the simultaneous acquisition of data from multiple regions of interest during an MRI scan. The core function of this coil is to enhance the signal-to-noise ratio and improve the overall image quality obtained from MRI systems.

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Lab products found in correlation

Magnetom prisma, by Siemens (3 mentions) Magnetom prisma 3t mri system, by Siemens (1 mentions) Prisma fit 3 t mri scanner, by Siemens (1 mentions) Prisma scanner, by Siemens (1 mentions) Skyra mri scanner, by Siemens (1 mentions) Prisma, by Siemens (1 mentions)

9 protocols using 20 channel coil

Brain Perfusion Imaging with Pulsed ASL

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Scanning was conducted with a 3T whole-body Siemens scanner (MAGNETOM Prisma) with a 20-channel coil.
As recently reported^{8 (link),44 (link)}, pulsed arterial spin labelling images were obtained with a PICORE-Q2TIPS (proximal inversion with control for off-resonance effects (quantitative imaging of perfusion by using a single subtraction sequence)) by applying a frequency offset corrected inversion pulse and echo planar imaging readout for acquisition. In addition, high-resolution T1-weighted anatomical images were obtained.

Hummel J., Benkendorff C., Fritsche L., Prystupa K., Vosseler A., Gancheva S., Trenkamp S., Birkenfeld A.L., Preissl H., Roden M., Häring H.U., Fritsche A., Peter A., Wagner R., Kullmann S, & Heni M. (2023). Brain insulin action on peripheral insulin sensitivity in women depends on menstrual cycle phase. Nature Metabolism, 5(9), 1475-1482.

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3T Multiband Functional MRI Acquisition

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Scanning was performed on a Siemens MAGNETOM Prisma 3T MRI system with a 20-channel coil. Gradient echo images with blood-oxygen-level-dependent (BOLD) contrast were collected using a multi-band sequence (multiband acceleration factor =8, TR 2000 ms, TE 30 ms, flip angle 90°, field of view = 224 mm × 224 mm, matrix size = 112 × 112, voxel size 2.0 × 2.0 × 2.0 mm) consisting of 64 interleaved axial slices with 0.2 mm gaps between slices. T1-weighted images (3D MPRAGE sequence, TR 2530 ms, TE 2.98 ms, flip angle 7°, inversion time 1100 ms, field of view = 256 mm × 256 mm, matrix size = 512 × 512, voxel size 0.5 × 0.5 × 1.0 mm) and field mapping images (TR 635 ms, TE 4.92 and 7.38 ms, flip angle 60°, field of view = 224 mm × 224 mm, matrix size = 112 × 112, voxel size 2.0 × 2.0 × 2.0 mm) were also acquired.

Wei P., Zou T., Lv Z, & Fan Y. (2020). Functional MRI Reveals Locomotion-Control Neural Circuits in Human Brainstem. Brain Sciences, 10(10), 757.

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Multimodal MRI Acquisition Protocol

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MRI data were continuously collected on a Siemens Prisma^fit 3T MRI scanner using a standard 20-channel coil at the Beijing MRI Center for Brain Research of the Chinese Academy of Sciences. Functional MRI time series data were acquired using a multiband BOLD-sensitive T2^*-weighted gradient echo-planar-imaging (EPI) sequence (Moeller et al., 2010 (link)) (TR = 1,000 ms, TE = 30 ms, slices thickness = 2.2 mm, in-plane resolution = 2.2 × 2.2 mm, flip angle = 45°, phase encoding direction = AP, multiband acceleration factor = 4). Sixty-four axial slices covering the whole brain were collected using interleaved multislice mode in the ascending direction. Six “dummy” scans were acquired and then discarded by the scanners. High-spatial-resolution anatomical images were acquired using a T1-weighted, magnetization-prepared rapid acquisition gradient echo (MPRAGE) sequence (TR = 2,200 ms, TE = 2.08 ms, slice thickness = 1 mm, in-plane resolution = 1.0 × 1.0 mm and flip angle = 8°). Fat suppression was applied for T1 acquisition.

Yang Y., Zhang J., Meng Z.L., Qin L., Liu Y.F, & Bi H.Y. (2018). Neural Correlates of Orthographic Access in Mandarin Chinese Writing: An fMRI Study of the Word-Frequency Effect. Frontiers in Behavioral Neuroscience, 12, 288.

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Multimodal neuroimaging protocol at 3T

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The neuroimaging data were acquired by a 3T Siemens Prisma scanner using a 20‐channel coil at the Center for Brain Imaging Science and Technology (CBIST), Zhejiang University. The high‐resolution anatomical images were collected using a T1‐weighted 3D magnetization‐prepared rapid gradient echo sequence with the following parameters: TR/TE = 2300 /2.32 ms; flip angle = 8°; FOV = 240 × 240 mm²; matrix = 256 × 256; voxel size = 0.94 × 0.94 × 0.9 mm³; and 208 slices in the sagittal panel. Diffusion‐weighted images were acquired with the following parameters: TR/TE = 3230/89.2 ms; flip angle = 78^°; FOV = 210 × 210 mm²; matrix = 140 × 140; voxel size = 1.5 × 1.5 × 1.5 mm³; 90 directions with multiple b‐values of 1000, 2000, and 3000 s/mm², along with six images with no diffusion gradient applied (b value = 0). Opposite phase encoding directions, that is, anterior–posterior (AP) and posterior–anterior (PA), were both performed.

Zhou H., Gong L., Su C., Teng B., Xi W., Li X., Geng F, & Hu Y. (2024). White matter integrity of right frontostriatal circuit predicts internet addiction severity among internet gamers. Addiction Biology, 29(5), e13399.

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Brain Perfusion Imaging with Pulsed ASL

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Functional MRI Acquisition of the Brain

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Functional data were acquired on a 3T Skyra MRI scanner (Siemens, Erlangen) using a 20-channel coil (TR = 2 s, TE = 30 ms). One volume comprised 31 slices of 3 mm with a gap of 33% (interleaved ascending acquisition). In-plane resolution was set to 3 × 3 mm with a FoV of 192 mm. For every participant, a fieldmap scan was acquired (TR = 488 ms, TE1 = 4.58 ms, TE2 = 7.04 ms). A T1-weighted anatomical scan was available for every participant. In total, 1528 functional volumes were acquired per fMRI session.

Kroczek L.O, & Gunter T.C. (2020). Distinct Neural Networks Relate to Common and Speaker-Specific Language Priors. Cerebral Cortex Communications, 1(1), tgaa021.

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Functional and Structural MRI Acquisition

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Functional and structural MRI data were extracted from the data set. Whole‐brain MRI data were acquired with a 3 T Siemens Prisma MRI scanner using a 20‐channel coil (Siemens Medical, Erlangen, Germany) at the Centre IRM‐INT in Marseille, France. Functional images were acquired using an echo‐planar imaging sequence (repetition time: 1205 ms; echo time: 30 ms; number of slices [axial, co‐planar to anterior/posterior commissure plan] per volume: 54; 2.5 mm isotropic resolution; flip angle: 65°; field of view: 210 × 210 mm²; matrix size: 84 × 84 mm²; multiband acquisition factor: 3; and number of volumes per run: 385). A high‐resolution structural image was collected for each participant using a GR_IR sequence (repetition time: 2.4 ms; echo time: .00228 ms; .8 mm isotropic resolution; 320 sagittal slices; and field of view: 204.8 × 256 × 256 mm). A field map was collected in the same session (repetition time: 7060 ms; echo time: 59 ms; 2.5 mm isotropic resolution; flip angle: 90°; and field of view: 210 × 210 mm²).

Hogenhuis A, & Hortensius R. (2022). Domain‐specific and domain‐general neural network engagement during human–robot interactions. The European Journal of Neuroscience, 56(10), 5902-5916.

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Preoperative MRI and fMRI Imaging Protocol

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All patients underwent preoperative MRI and fMRI with paradigms designed at our institute.[1 (link)17 (link)] Images were obtained on a 3.0-Tesla Siemens Skyra MR scanner with a 20-channel coil. The T1 sequences on the Siemens Skyra scanner console were acquired using the following protocol: TR = 1900 ms, TE = 2.44 ms, matrix = 256 × 256, slice thickness = 1 mm, voxel size = 1 × 1 × 1 mm, and number of slices = 192.

Gunal V., Savardekar A.R., Devi B.I, & Bharath R.D. (2018). Preoperative functional magnetic resonance imaging in patients undergoing surgery for tumors around left (dominant) inferior frontal gyrus region. Surgical Neurology International, 9, 126.

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Multimodal Neuroimaging Protocol for Cerebral Blood Flow and Functional Connectivity

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Scanning was conducted at a 3T whole-body Siemens scanner (Magnetom Prisma) with a 20-channel coil. Two different types of functional data sets were recorded at each visit before and after nasal spray application. In addition, high-resolution T1-weighted anatomical images were obtained.
To acquire CBF maps, pulsed arterial spin labeling (PASL) images were obtained with a PICORE-Q2TIPS sequence. To assess resting-state FC, whole-brain blood-oxygen-level-dependent data were collected by using multiband accelerated echoplanar imaging sequences, developed at Center for Magnetic Resonance Research (CMRR; Minneapolis, Minnesota, USA). For detailed sequence parameters, see Supplemental Methods.

Kullmann S., Goj T., Veit R., Fritsche L., Wagner L., Schneeweiss P., Hoene M., Hoffmann C., Machann J., Niess A., Preissl H., Birkenfeld A.L., Peter A., Häring H.U., Fritsche A., Moller A., Weigert C, & Heni M. (2022). Exercise restores brain insulin sensitivity in sedentary adults who are overweight and obese. JCI Insight, 7(18), e161498.

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