Signa excite mr scanner

Manufactured by GE Healthcare

The Signa Excite MR scanner is a magnetic resonance imaging (MRI) system developed by GE Healthcare. It is designed to acquire high-quality images of the human body for diagnostic purposes. The Signa Excite MR scanner utilizes powerful magnetic fields and radio waves to generate detailed images of internal structures and organs, providing healthcare professionals with the necessary information to diagnose and monitor various medical conditions.

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Lab products found in correlation

Mr750 discovery mri system, by GE Healthcare (1 mentions) 8 channel ge head coil, by GE Healthcare (1 mentions)

Close spelling variants of this product

Signa EXCITE HDxt 3.0 T MR scanner Signa Excite HDxt MR Scanner Signa Excite scanner Signa MR scanner Signa Excite Signa scanner Scanners

2 protocols using signa excite mr scanner

Longitudinal Brain Imaging Across Scanners

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At the beginning of the study, neuroimaging data were acquired on a 1.5T GE Signa Excite MR scanner (scanner 1). Six years later, the 1.5T MRI system was decommissioned and we used a 3T GE MR750 Discovery MRI system (scanner 2). Baseline and follow-up scans on scanner 2 were collected with different head coils. Scan parameters and scans collected on each scanner and head coil are presented in the Supplemental Material. In all but three cases, mothers were scanned on the same scanner as their daughters’ first scan. An analysis of variance (ANOVA) yielded no significant differences in family income as a function of scanner (dummy coded scanner 1, scanner 2, or both; income: F(2,98) = 0.13, p = 0.880), though there was a marginal difference in average years of parental education (F(2,97) = 3.03, p = 0.053). Post hoc Fisher’s least significant differences (LSD) tests revealed that the 32 girls who were scanned with scanner 2 only had more highly educated parents than those who were scanned only at scanner 1 (p = 0.021) and marginally more than those who were scanned at both facilities (p = 0.067).

Ellwood-Lowe M.E., Humphreys K.L., Ordaz S.J., Camacho M.C., Sacchet M.D, & Gotlib I.H. (2017). Time-varying effects of income on hippocampal volume trajectories in adolescent girls. Developmental Cognitive Neuroscience, 30, 41-50.

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fMRI Protocol for Functional Neuroimaging

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All stimuli were back-projected onto a screen located at the foot of the scanner bed from an LCD projector located in the scanner console room. A computer using Presentation software controlled stimulus presentation and response collection (version 16; http://www.neurobs.com). Participants viewed the stimuli via a mirror attached to the scanner coil above their eyes. Imaging data were obtained at the University of California, San Diego Center for Functional Magnetic Resonance Imaging using a short-bore 3.0 Tesla General Electric Signa EXCITE MR scanner equipped with a parallel-imaging capable GE 8-channel head coil. FMRI data were acquired using a single-shot gradient-recalled echo-planar imaging sequence with blood oxygenation level-dependent (BOLD) contrast (38 slices; 4-mm slab; gap=0.5 mm, TR=2000; TE=30 ms; flip angle=90°; FOV=256 mm; matrix=64×64; in-plane resolution=4 mm²). A high-resolution parallel imaging SPGR scan was acquired for anatomical localization (sagittal acquisition; TR=8.11 ms; TE=3.17 msec; TI=600 msec; NEX=1; flip angle=8°; FOV=256 mm; acquisition matrix=256×192; 168 slices; slice thickness=1 mm; resolution=0.98×0.98×1 mm).

Haist F., Wazny J.H., Toomarian E, & Adamo M. (2014). Development of brain systems for nonsymbolic numerosity and the relationship to formal math academic achievement. Human Brain Mapping, 36(2), 804-826.

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