Conventional MRI and DWI scans were performed using a GE Signa HDxt 3.0T MR. The scanning sequence and parameters were as follows: ① axial T1WI sequence:Epetition time(TR)/Echo time(TE) 5.4/2.5 ms, matrix 256×200, Field of view(FOV) 380 mm×340 mm, layer thickness 5 mm, layer interval 1.0 mm, scanning time 1 ‘16 “; ② axial T2WI sequence: TR/TE 5.4/2.5 ms, matrix 256×200, FOV 380 mm×340 mm, layer thickness 5 mm, layer interval 1.0 mm, scanning time 1’ 16” TR/TE 13043/71 MS, matrix 320×320, FOV 380 mm×380 mm, layer thickness 5 mm, layer interval 1.0 mm, scanning time 2 ‘37 “; ③ axial DWI sequence: TR/TE 5455/82 ms, matrix 128×128, b= 0,1500 s/mm2, FOV 380 mm×320 mm (axial position), layer thickness 5 mm, layer interval 1.0 mm, scanning time 2 ‘22 “; and (4) axial and sagittal liver acquisition with volume acceleration (LAVA) dynamic enhanced scan: TR/TE 5.4/1.9 ms, reverse angle 15°, matrix 256×200, FOV 380 mm×350 mm, layer thickness 4.0 mm, layer interval 2.0 mm, acquisition time 3 ‘16 “. Magnevist (Bayer Medical, Guangzhou, China) was injected through the elbow vein with a double syringe, with a dose of 0.1 ml/kg body weight and a rate of 2-3 mL/s.
Signa hdxt 3.0t mr
Manufactured by GE Healthcare
Sourced in United States
The Signa HDxt 3.0T MR is a magnetic resonance imaging (MRI) system manufactured by GE Healthcare. It operates at a field strength of 3.0 Tesla and is designed to provide high-quality imaging capabilities for clinical and research applications.
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Lab products found in correlation
3 protocols using signa hdxt 3.0t mr
1
MRI and DWI Imaging Protocol for Liver Assessment
2
Structural and Functional MRI Acquisition
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The MRI data were acquired with a Signa HDXT 3.0 T MR scanner (GE, Milwaukee, WI, USA). High-resolution T1 structural images were acquired for structural reference. The parameters for T1 imaging were as follows: repetition time = 1900 ms; echo time = 2.5 ms; field of view = 250 mm × 250 mm; flip angle = 9°; slice thickness = 1.0 mm; slice interval = 0.5 mm; and number of slices = 176. The resting-state fMRI data were acquired using a gradient echo planar imaging sequence with repetition time = 2000 ms; echo time = 30 ms; field of view = 250 mm × 250 mm; flip angle = 90°; slice thickness = 3.5 mm; slice interval = 1 mm; and number of slices = 31.
3
MRI and DWI Imaging Protocol for Liver Assessment
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Conventional MRI and DWI scans were performed using a GE Signa HDxt 3.0T MR. The scanning sequence and parameters were as follows: ① axial T1WI sequence:Epetition time(TR)/Echo time(TE) 5.4/2.5 ms, matrix 256×200, Field of view(FOV) 380 mm×340 mm, layer thickness 5 mm, layer interval 1.0 mm, scanning time 1 ‘16 “; ② axial T2WI sequence: TR/TE 5.4/2.5 ms, matrix 256×200, FOV 380 mm×340 mm, layer thickness 5 mm, layer interval 1.0 mm, scanning time 1’ 16” TR/TE 13043/71 MS, matrix 320×320, FOV 380 mm×380 mm, layer thickness 5 mm, layer interval 1.0 mm, scanning time 2 ‘37 “; ③ axial DWI sequence: TR/TE 5455/82 ms, matrix 128×128, b= 0,1500 s/mm2, FOV 380 mm×320 mm (axial position), layer thickness 5 mm, layer interval 1.0 mm, scanning time 2 ‘22 “; and (4) axial and sagittal liver acquisition with volume acceleration (LAVA) dynamic enhanced scan: TR/TE 5.4/1.9 ms, reverse angle 15°, matrix 256×200, FOV 380 mm×350 mm, layer thickness 4.0 mm, layer interval 2.0 mm, acquisition time 3 ‘16 “. Magnevist (Bayer Medical, Guangzhou, China) was injected through the elbow vein with a double syringe, with a dose of 0.1 ml/kg body weight and a rate of 2-3 mL/s.
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