Ge signa scanner

Manufactured by GE Healthcare

Sourced in United States

The GE Signa scanner is a magnetic resonance imaging (MRI) system designed for diagnostic imaging in healthcare settings. It uses a strong magnetic field and radio waves to generate detailed images of the body's internal structures. The Signa scanner's core function is to capture high-quality images that enable healthcare professionals to diagnose and monitor medical conditions.

Automatically generated - may contain errors

Lab products found in correlation

8 channel head coil, by GE Healthcare (4 mentions) Ge lightspeed rt, by GE Healthcare (2 mentions) Open breast array mri coil, by GE Healthcare (2 mentions) Magnevist, by Bayer (2 mentions) 8 channel phased array head coil, by GE Healthcare (1 mentions) Eight channel phased array head coil, by GE Healthcare (1 mentions) Gadolinium bopta multihance, by Bracco (1 mentions) Achieva scanner, by Philips (1 mentions) Skyra scanner, by Siemens (1 mentions) Eight channel head coil, by GE Healthcare (1 mentions) Multihance, by Bracco (1 mentions) Iplan flow software, by Brainlab (1 mentions)

37 protocols using ge signa scanner

Neuroanatomical MRI Acquisition Protocol

Check if the same lab product or an alternative is used in the 5 most similar protocols

Neuroanatomical MRI was acquired on 370 participants on a 1.5-T GE Signa scanner (Milwaukee, WI) at both baseline and follow up. Sixty-eight participants had aMRI acquired on a 3-T GE Signa scanner (Milwaukee, WI) at both time points. Twenty children were scanned on a 1.5-T scanner at baseline and a 3-T scanner at follow-up. Imaging parameters are given as supplemental information.

Szekely E., Schwantes-An T.H., Justice C.M., Sabourin J.A., Jansen P.R., Muetzel R.L., Sharp W., Tiemeier H., Sung H., White T.J., Wilson A.F, & Shaw P. (2018). Genetic associations with childhood brain growth, defined in two longitudinal cohorts. Genetic epidemiology, 42(4), 405-414.

+ Open protocol

+ Expand

High-Resolution Structural and Functional MRI Acquisition

Check if the same lab product or an alternative is used in the 5 most similar protocols

Scanning was done using a 3.0 T Signa GE scanner with an 8‐channel phased‐array head coil. For each subject, a high‐resolution structural image was acquired through a three‐dimensional MRI sequence with a voxel size of 1 mm × 1 mm × 1 mm, using an axial fast spoiled gradient recalled sequence with the following parameters: repetition time = 1900 ms, echo time = 2.6 ms, data matrix = 256 × 256, and field of view (FOV) = 256 × 256 mm.
The functional datasets were acquired using a T2*‐weighted echo‐planar imaging sequence. The parameters were as follows: repetition time = 2000 ms, echo time = 30 ms, data matrix = 64 × 64, voxel size = 3.75 mm × 3.75 mm × 4 mm, FOV = 240 mm × 240 mm, flip angle = 90°, and slices = 35 with no gap.

Wang C., Liu Y., Dun W., Zhang T., Yang J., Wang K., Mu J., Zhang M, & Liu J. (2020). Effects of repeated menstrual pain on empathic neural responses in women with primary dysmenorrhea across the menstrual cycle. Human Brain Mapping, 42(2), 345-356.

+ Open protocol

+ Expand

Resting-State fMRI Acquisition Protocol

Check if the same lab product or an alternative is used in the 5 most similar protocols

MR imaging was performed using a whole-body 3T Signa GE scanner (GE, Waukesha, Wis.) with a standard transmit-receive head coil. Whole-brain sagittal R-fcMRI data sets were obtained in eight minutes with a single-shot gradient echo-echo planar imaging pulse sequence. Participants were instructed to close their eyes and relax, and no specific cognitive tasks were performed. The R-fcMRI imaging parameters were: TE = 25 ms, TR = 2000 ms, flip angle of 90°, number of slices = 36, slice thickness = 4 mm, matrix size = 64 × 64, and field of view = 240 × 240 mm. High-resolution 3D spoiled gradient-recalled echo (SPGR) axial images were acquired for anatomical reference. The parameters were: TE/TR/TI of 4/10/450 ms, flip angle of 12°, number of slices = 144, slice thickness = 1 mm, matrix size = 256 ×192 and FOV = 240 × 240 mm.

Li W., Ward B.D., Liu X., Chen G., Jones J.L., Antuono P.G., Li S.J, & Goveas J.S. (2014). Disrupted Small World Topology and Modular Organization of Functional Networks in Late Life Depression with and without Amnestic Mild Cognitive Impairment. Journal of neurology, neurosurgery, and psychiatry, 86(10), 1097-1105.

+ Open protocol

+ Expand

Neuroanatomical Markers in Psychotic Disorders

Cited 2 times

Check if the same lab product or an alternative is used in the 5 most similar protocols

3D GRASS T1-MPRAGE scans were obtained using a 1.5-T Signa GE Scanner and scan parameters can be found in our previous study (Keshavan, Sanders, et al., 2003 (link)). Automated brain segmentation was performed using FreeSurfer 6.0 and we used the Brodmann area maps to parcellate the V1, V2, and V5/MT regions using a semi-automated process (Fischl et al., 2008 (link)) as previously described by our group (Lizano, Lutz, et al., 2019 (link)). The Brodmann area atlas was visually inspected for proper segmentation (quality control), audited by the author (IA) and rated between 0 (low quality), 1, and 2 (high quality). Participants with low quality MRI scans (n=6) were excluded. Area and volume values were summed, while thickness measures were averaged for the left and right hemisphere.
The final sample included 102 participants, HC n=44, FEP-SZ n=36 (schizophrenia n=9, schizophreniform n=1, schizoaffective disorder n=5, and residual/unspecified SZ diagnosis n=21) and FEP-NSZ n= 22 (bipolar disorder n=2, major depressive disorder n=9, brief reactive psychosis n=10, and delusions disorder n=1).

Adhan I., Lizano P., Bannai D., Lutz O., Dhaliwal K., Zeng V., Miewald J., Montrose D, & Keshavan M. (2020). Visual Cortical Alterations and their Association with Negative Symptoms in Antipsychotic-Naïve First Episode Psychosis. Psychiatry research, 288, 112957.

+ Open protocol

+ Expand

Resting-state fMRI Acquisition Protocol

Check if the same lab product or an alternative is used in the 5 most similar protocols

Imaging was performed using a whole-body 3T Signa GE scanner with a standard quadrature transmit receive head coil. During the resting-state acquisitions, no specific cognitive tasks were performed, and the study participants were instructed to close their eyes and relax inside the scanner. High-resolution SPGR 3D axial images were acquired for anatomical reference. The number of slices is 144, slice thickness is 1 mm, matrix size is 256 × 192. The sagittal rsfMRI datasets of the whole brain were obtained in 10 minutes with a single-shot gradient echo-planar imaging (EPI) pulse sequence. The fMRI imaging parameters were: echo time (TE) of 25 ms, repetition time (TR) of 2 s, flip angle of 90°; 36 slices were obtained without gap; slice thickness was 4 mm with a matrix size of 64 × 64 and field of view of 24 × 24 cm.

Karafin M.S., Chen G., Wandersee N.J., Brandow A.M., Hurley R.W., Simpson P., Ward D., Li S.J, & Field J.J. (2019). Chronic pain in adults with sickle cell disease is associated with alterations in functional connectivity of the brain. PLoS ONE, 14(5), e0216994.

+ Open protocol

+ Expand

Dose Escalation Partial Breast Radiotherapy

Check if the same lab product or an alternative is used in the 5 most similar protocols

This study included 16 patients who enrolled on a preoperative, dose escalation, single‐fraction partial breast radiotherapy clinical protocol at Duke. Prior to CT scan, all patients had one titanium biopsy marker implanted to identify the tumor. Patients underwent CT (GE LightSpeed RT; GE Medical System, Milwakee, WI) scanning with 2.5 mm slice thickness in the prone position on a CDR prone breast board (CDR Systems Inc, Calgary, AB, Canada), which was placed on top of the CT table and treatment couch. The head was turned to the ipsilateral side and both arms were raised up to hold the handles above the head. The ipsilateral breast (ILB) was allowed to fall naturally through the opening of the prone breast board while the contralateral breast⁽²¹⁾ was pulled away with the support of the bridge plate on the board.⁽²²⁾ CT origin was marked on the patient's skin and the board. Patients also underwent MRI in the prone position (1.5 Tesla GE Signa scanner; GE Medical System) using the open breast array MRI coil (GE Medical System). T1 weighted and dynamic contrast‐enhanced MR images were acquired to delineate the tumor.

Yoo S., Blitzblau R., Yin F, & Horton J.K. (2015). Dosimetric comparison of preoperative single‐fraction partial breast radiotherapy techniques: 3D CRT, noncoplanar IMRT, coplanar IMRT, and VMAT. Journal of Applied Clinical Medical Physics, 16(1), 183-207.

+ Open protocol

+ Expand

Diffusion Weighted Imaging in Young Children

Cited 1 time

Check if the same lab product or an alternative is used in the 5 most similar protocols

MR scans were performed using a 3T GE-Signa scanner (GE Healthcare, Milwaukee, WI) equipped with an 8-channel head coil and ASSET. DWI was acquired with a multi-slice single shot diffusion weighted echo-planar-imaging (EPI) sequence at repetition time (TR) = 12,500 ms, echo time (TE) = 88.7 ms, field of view (FOV) = 240 mm, 128×128 acquisition matrix (nominal resolution = 1.89 mm), contiguous 3 mm thickness in order to cover entire axial slices of the whole brain using 55 isotropic gradient directions with b= 1000s/mm², one b=0 acquisition, and number of excitations (NEX)=1 [5 (link)]. Approximate scanning time for the acquisition was 12 minutes using double refocusing pulse sequence to reduce eddy current artifacts. Only children with neurological condition younger than age 4 years (being scanned clinically) were sedated using pentobarbital (3 mg/kg) followed by fentanyl (1 mg/kg).

Kamson D.O., Juhász C., Chugani H.T, & Jeong J.W. (2014). Novel diffusion tensor imaging technique reveals developmental streamline volume changes in the corticospinal tract associated with leg motor control. Brain & development, 37(4), 370-375.

+ Open protocol

+ Expand

Resting-state fMRI in Recurrent Depression

Check if the same lab product or an alternative is used in the 5 most similar protocols

At UM (n = 11 HC, n = 16 rMDD), scans were collected with a 3.0 T GE Signa scanner (USA) using T2*-weighted single shot reverse spiral sequence with the following parameters: 90 degree flip, field-of-view 20, matrix size = 64 × 64, slice thickness 4mm, 30 ms echo time, 29 slices. At UIC (n = 36 HC, n = 57 rMDD) scans were collected with a 3.0 T GE Discovery Scanner (USA) using parallel imaging with ASSET and T2* gradient-echo axial echo planar imaging (EPI) with the following parameters: 90 degree flip, field-of-view 22, matrix size = 64 × 64, slice thickness = 3 mm, 22.2 ms echo time, 44 slices. Both sites used a repetition time (TR) of 2000 ms, with 240 total TRs collected and interleaved slice acquisition. High-resolution anatomic T1 scans were obtained for spatial normalization at both sites. Motion was minimized with foam pads, by instructing participants to gaze on a visual tracking line (UIC only) and/or crosshair (UIC and UM) on the display, and by conveying the importance of holding still to participants.

Peters A.T., Jenkins L.M., Stange J.P., Bessette K.L., Skerrett K.A., Kling L.R., Welsh R.C., Milad M.R., Phan K.L, & Langenecker S.A. (2019). Pre-Scan Cortisol is Differentially Associated with Enhanced Connectivity to the Cognitive Control Network in Young Adults with a History of Depression. Psychoneuroendocrinology, 104, 219-227.

+ Open protocol

+ Expand

Diffusion-Weighted MRI Brain Imaging

Check if the same lab product or an alternative is used in the 5 most similar protocols

All participants underwent a 3T diffusion weighted MRI with eight channel head coil (GE-Signa scanner, GE Healthcare, Milwaukee, WI) at TR = 12,500ms, TE = 88.7ms, FOV = 24cm, 128×128 acquisition matrix (nominal resolution = 1.89mm), contiguous 3mm thickness in order to cover entire axial slices of whole brain using 55 isotropic gradient directions with b= 1000s/mm², one b=0 acquisition, and number of excitations=1. The present study utilized the NIH TORTOISE DIFF_PREP software package to correct motion and eddy current distortion in the diffusion weighted MRI data (https://science.nichd.nih.gov/confluence/display/nihpd/TORTOISE).

Jeong J.W., Sundaram S., Behen M.E, & Chugani H.T. (2016). Relationship between Genotype and Arcuate Fasciculus Morphology in Six Young Children with Global Developmental Delay: Preliminary DTI Stuy. Journal of magnetic resonance imaging : JMRI, 44(6), 1504-1512.

+ Open protocol

+ Expand

Comprehensive Brain Imaging with DTI

Check if the same lab product or an alternative is used in the 5 most similar protocols

MR scans were performed using a 3T GE-Signa scanner (GE Healthcare, Milwaukee, WI) equipped with an 8-channel head coil and ASSET. DTI was acquired with a multi-slice single shot diffusion weighted echo-planar-imaging (EPI) sequence at repetition time = 12,500 ms, echo time = 88.7 ms, field of view (FOV) = 240 mm, 128×128 acquisition matrix (nominal resolution = 1.89 mm), contiguous 3 mm thickness in order to cover entire axial slices of the whole brain using 55 isotropic gradient directions with b= 1000s/mm², one b=0 acquisition, and number of excitations = 1. Children with neurological conditions being scanned clinically were sedated, if needed, using pentobarbital (3 mg/kg) followed by fentanyl (1μg/kg).

Jeong J.W., Lee J., Kamson D.O., Chugani H.T, & JuhÁsz C. (2015). Detection of Hand and Leg Motor Tract Injury Using Novel Diffusion Tensor MRI Tractography in Children with Central Motor Dysfunction. Magnetic resonance imaging, 33(7), 895-902.

+ Open protocol

+ Expand

About PubCompare

Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.

We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.

However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.

Ready to get started?

Revolutionizing how scientists
search and build protocols!