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3t signa mri system

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The 3T Signa MRI system is a magnetic resonance imaging (MRI) device designed and manufactured by GE Healthcare. It operates at a magnetic field strength of 3 Tesla, providing high-resolution images for clinical diagnostics and research applications. The system utilizes advanced imaging techniques to capture detailed anatomical and functional information about the human body.

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Close spelling variants of this product

Signa System (36 citations) Signa 3T (20 citations) Signa MRI system (9 citations) 3T MRI system (4 citations) SIGNA HDx 3T MRI system (2 citations)

2 protocols using 3t signa mri system

1

Infant Brain Imaging Using 3T MRI

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A General Electric (Milwaukee, WI, USA) 3T Signa MRI system was used to acquire MR data. Infant scans were performed immediately after feeding by a parent. Infants were swaddled and slept unsedated during scans. One hundred and fifty T2* echo-planar imaging (EPI) volumes were acquired (repetition time [TR] =2,000 ms, echo time [TE] =30 ms, field of view =22 cm2, flip angle =70°, matrix =642 , 28 axial, 3.4 mm thick slices, no gap, angled parallel to the planum sphenoidale), using a standard quadrature head coil. Voxel dimensions were 3.43×3.43×3.4 mm. Slices were 2.6 mm thick, with a 1.4 mm gap for the adult scan data (N slices =27; dimensions =3.43×3.43×4 mm). Motion was reduced using foam inserts between the head and coil. Headphones were used for hearing protection during scans. Subsequent to the EPI acquisition, inversion-recovery T1 weighted scans were acquired for each participant (TR =6.56 ms, TE =2.82 ms, inversion recovery time [IR] =450 ms, flip angle =12°, 122 axial slices, 1 mm3 voxels).
Wylie K.P., Rojas D.C., Ross R.G., Hunter S.K., Maharajh K., Cornier M.A, & Tregellas J.R. (2014). Reduced brain resting-state network specificity in infants compared with adults. Neuropsychiatric Disease and Treatment, 10, 1349-1359.
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2

Multimodal Neuroimaging of Healthy Adults

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Eight healthy young adults were scanned in a GE 3T Signa MRI system using an 8-channel head coil at the Bioimaging Research Center (BIRC) of the University of Georgia (UGA) under IRB approval. The subjects participated in DTI, resting-state fMRI (rs-fMRI) scans and task-fMRI scans and their datasets were used in this paper. DTI data was acquired using the spatial resolution 2mm×2mm×2mm; parameters were TR 15.5s and TE min-full, b-value = 1000 with 30 DWI gradient directions and 3 B0 volumes acquired. All scans were aligned to the AC-PC line. Rs-fMRI acquisition parameters were as follows: 64×64 matrix, 4mm slice thickness, 220mm Field of View (FOV), 30 slices, repetition time (TR)=1.5s, echo time (TE)=25ms, ASSET=2. One in-house verified paradigms fear task (Zhu et al., 2012b (link)) was used in this paper to validate the results. Task-fMRI were acquired using a T2*-weighted single shot echo planar imaging (EPI) sequence and were aligned to the intercommisural line (AC–PC line); TE = 25 ms, TR = 1500 ms, 90° RF pulse, 30 interleaved slices, acquisition matrix = 64 × 64, slice thickness = 4 mm, FOV = 240 × 240 mm, and ASSET factor = 2.
Zhang T., Zhu D., Jiang X., Zhang S., Kou Z., Guo L, & Liu T. (2016). Group-wise Consistent Cortical Parcellation Based on Connectional Profiles. Medical image analysis, 32, 32-45.
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