Resting state functional images were acquired on a 3T MR scanner (General Electric, Milwaukee, WI, USA) using a standard quadrature head coil. An inversion-recovery echoplanar image (IR-EPI; TI = 505 ms) was collected to improve coregistration of functional images. Images were acquired with the following parameters: scan time 10 minutes, TR = 2000 ms, TE = 26 ms, FOV = 220 mm2, 642 matrix, 27 slices, 2.6 mm thick, 1.4 mm gap, interleaved, flip angle 70°, 300 volumes. Subjects were instructed to rest with eyes closed, to not fall asleep, and to “not think about anything in particular.” Although having subjects rest with eyes closed potentially induces variable levels of drowsiness during the scan, previous work suggests that only auditory network connectivity is affected by having subjects rest with eyes closed vs. eyes open (Patriat et al., 2013 (link)).
3t mr scanner
Manufactured by GE Healthcare
Sourced in United States
The 3T MR scanner is a magnetic resonance imaging (MRI) system that operates at a magnetic field strength of 3 Tesla. It provides high-resolution imaging capabilities for diagnostic and research applications. The system utilizes powerful superconducting magnets and advanced radiofrequency technology to generate detailed images of the human body.
Automatically generated - may contain errors
14 protocols using 3t mr scanner
1
Resting-state fMRI Acquisition Protocol
2
Diffusion Tensor Imaging Acquisition
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Diffusion-weighted images were acquired on a 3T MR scanner (General Electric, Milwaukee, WI) at the First Affiliated Hospital of China Medical University, Shenyang, China. Head motion was minimized with restraining foam pads. A standard head coil was used for radiofrequency transmission and reception of the nuclear magnetic resonance signal. Diffusion tensor images were acquired using a spin-echo planar imaging sequence, parallel to the anterior-posterior (AC-PC) plane. The diffusion sensitizing gradients were applied along 25 non-collinear directions (b = 1,000 s/mm2), together with an axial acquisition without diffusion weighting (b = 0). These were the scanning parameters: repetition time (TR) = 17,000 ms; echo time (TE) = 85.4 ms; field of view (FOV) = 240×240 mm2; image matrix = 120×120; 65 contiguous slices of 2 mm without gaps.
3
Dynamic Contrast-Enhanced MRI Protocol for Prostate Cancer Evaluation
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
DCE-MR images of 22 patients diagnosed with prostate cancer were acquired on a 3T MR scanner (GE Healthcare, Waukesha, WI)
using a combination of 8-channel abdominal array and endorectal coil (Medrad, Pittsburgh, PA). DCE MRI utilized a 3D SPGR
sequence with TE/TR = 3.6/1.3 ms, flip angle = 15̊, image matrix = 256 ×256, FOV = 26×26 cm2, slice thickness = 6 mm,
number of measurements = 60 at 5 sec/volume, number of slices = 12 and 16. At first, five baseline dynamic scans were performed
before the injection of contrast agent and the subsequent scans started immediately after the injection of 3 mL/sec of Gadolinium,
followed by 20 ml saline flush at the same rate. The database was provided by QIN Prostate database of The Cancer Imaging Archive (TCIA)[15 (link)].
using a combination of 8-channel abdominal array and endorectal coil (Medrad, Pittsburgh, PA). DCE MRI utilized a 3D SPGR
sequence with TE/TR = 3.6/1.3 ms, flip angle = 15̊, image matrix = 256 ×256, FOV = 26×26 cm2, slice thickness = 6 mm,
number of measurements = 60 at 5 sec/volume, number of slices = 12 and 16. At first, five baseline dynamic scans were performed
before the injection of contrast agent and the subsequent scans started immediately after the injection of 3 mL/sec of Gadolinium,
followed by 20 ml saline flush at the same rate. The database was provided by QIN Prostate database of The Cancer Imaging Archive (TCIA)[15 (link)].
4
Structural and Functional Brain Imaging Protocol
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The imaging data were acquired using a 3T MR scanner (General Electric, Milwaukee, United States) with an eight-channel radio frequency coil. Whole participants were laid up in a head coil and filled with foam padding in case of head movement. Instructions of keeping motionless, eyes closed, and not to think systematically as far as possible were given to the subjects.
The structural images were obtained by T1-weighted three-dimensional spoiled gradient recalled echo (3D SPGR) sequences with the following scan parameters: repetition time (TR) = 8.5 ms, echo time (TE) = 3.4 ms, flip angle (FA) = 12°, number of slices = 156, slice thickness = 1 mm, voxel resolution = 1 × 1 × 1 mm3, data matrix = 256 × 256, field of view (FOV) = 240 mm × 240 mm. The resting-state functional images were captured by employing a gradient-echo echo-planar imaging (EPI) sequence with the following parameters: TR = 2,000 ms, TE = 30 ms, FA = 90°, slice thickness = 5 mm, slice gap = 0 mm, number of slices = 30, FOV = 240 × 240 mm, data 0matrix = 64 × 64, voxel resolution = 3.75 × 3.75 × 5 mm3, and acquisition time = 400 s (200 volumes).
The structural images were obtained by T1-weighted three-dimensional spoiled gradient recalled echo (3D SPGR) sequences with the following scan parameters: repetition time (TR) = 8.5 ms, echo time (TE) = 3.4 ms, flip angle (FA) = 12°, number of slices = 156, slice thickness = 1 mm, voxel resolution = 1 × 1 × 1 mm3, data matrix = 256 × 256, field of view (FOV) = 240 mm × 240 mm. The resting-state functional images were captured by employing a gradient-echo echo-planar imaging (EPI) sequence with the following parameters: TR = 2,000 ms, TE = 30 ms, FA = 90°, slice thickness = 5 mm, slice gap = 0 mm, number of slices = 30, FOV = 240 × 240 mm, data 0matrix = 64 × 64, voxel resolution = 3.75 × 3.75 × 5 mm3, and acquisition time = 400 s (200 volumes).
5
Brainstem MRI for Facial Nerve Delineation
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Patients underwent dedicated brainstem MRI typically performed 2–3 days prior to MVD to delineate the facial nerve and adjacent vessels. Studies were performed on a 3 T MR scanner (GE Healthcare). Studies were performed using our previously described cranial nerve protocol which includes sagittal T1, axial FLAIR (fluid-attenuated inversion recovery), and DWI (diffusion weighted imaging) sequences of the whole brain with the addition of dedicated thin-section axial, coronal, and sagittal steady-state free precession (SSFP) images through the brainstem4 (link) (Table 1 ).
6
Resting-State fMRI Acquisition Protocol
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Participants were scanned on a 3 T MR scanner (GE Healthcare, Waukesha, WI) at Medical College of Wisconsin. 3-dimensional, T-1 weighted anatomical images were obtained using a spoiled gradient-recalled at steady-state (SPGR) pulse sequence (TE = 3.4 s, TR = 8.2 s, TI = 450 ms, flip angle = 12 FOV = 240 mm, resolution = 256x256mm, slice thickness = 1 mm, 150 sagittal slices). An 8-minute resting state fMRI scan was conducted with the following parameters: TE = 25 ms, TR = 2 s, flip angle = 77 FOV = 240 mm, matrix = 64x64, slice thickness = 3.7 mm, 40 sagittal slices, 240 repetitions. During the resting state scan, participants were instructed to lie awake with their eyes closed.
7
Brain Imaging Protocol for Resting-State fMRI
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Brain MRI was performed using a 3T MR scanner (General Electric, Milwaukee, Wisconsin) and standard quadrature head coil. Head motion was minimized using a VacFix head-conforming vacuum cushion (Par Scientific A/S, Odense, Denmark). Any subjects with ≥2 mm of head motion were excluded. High resolution T1-weighted SPGR-IR sequences (TR = 45ms, TE = 20ms, flip angle = 70°, 256 × 256 matrix, 240 × 240mm2 field-of-view (0.9 × 0.9mm2 in plane), 1.7mm slice thickness, and coronal plane acquisition) and resting-state functional scans (TR = 2000ms, TE = 30ms, flip angle = 30°, axial acquisition, 64 × 64 matrix, 3.4 mm × 3.4 mm in-plane voxel size, 3mm slice thickness, 1mm gap, 150 volumes) were acquired. During fMRI acquisition, participants were instructed to close their eyes, not think of anything in particular, and not fall asleep.
8
Optimized Variable Density Radial UTE
9
Resting-state fMRI and T1-weighted MRI Acquisition
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
All MRI data were acquired on a GE 3T MR scanner with an eight-channel phased-array head coil. The rs-fMRI data were obtained using a single-shot multi-slice gradient-echo echo-planar imaging (GE-EPI) sequence. The sequence parameters were as follows: repetition time (TR) = 2000 ms, echo time (TE) = 26 ms, flip angle (FA) = 90°, field of view (FOV) = 240 × 240 mm2, data matrix = 64 × 64, slice thickness = 3.6 mm, inter-slice gap = 0.6 mm, 36 axial sequential slices, and 240 volumes acquired in about 8 min. High-resolution brain structural images were also acquired using a T1-weighted 3D fast spoiled gradient recalled (FSPGR) sequence with the following parameters: TR = 8.86 ms, TE = 3.52 ms, FOV= 240 × 240 mm2, data matrix = 256 × 256, FA = 90°, voxel size = 0.94 × 0.94 × 1 mm3, and 176 sagittal slices covering the whole-brain.
10
Cranial Nerve MRI Protocol
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The MR examinations were performed on a 3 T MR scanner (GE Healthcare, Milwaukee, WI). The MRIs were performed using our cranial nerve protocol, which has been previously published.3 (link) In brief, the protocol consists of sagittal T1, axial Fluid-Attenuated Inversion Recovery and Diffusion Weighted Imaging sequences of the whole brain with additional multiplanar thin-slice Steady-State Free Precession (SSFP) images through the cranial nerves.
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?
Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required
Revolutionizing how scientists
search and build protocols!