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1 /GE /
LATEST APPLICATION IN MR IMAGING
Neuro Imaging 7 Tesla High Resolution Neuro
1cm
1cm
Musculoskeletal
Knee Finger
Courtesy Mayo Clinic
3D T2 Volumetric imaging
Reformat Reformat3.0T T2w FSE-XETA
2 /GE /
Angiography (Blood Vessels) Whole Body ImagingCarcinoidtumor of colon with liver metastasis
STIR
Liver
Free Breathing High Resolution Breath Hold
Breast
VIBRANT-DE
B=0
B=800
Axial VIBRANT
DWI: pre Gd1.6mm2
Ax T2 IDEAL
fMRI and Tractography Blood Flow
Courtesy Stanford University
3 /GE /
Why is MRI so useful? VersatilityProtons are the source of the MR signal … most of the body is H20No ionizing radiationArbitrary orientation and scan plane1D, 2D, 3D, 4D Imaging
Structure and FunctionMR signal is sensitive to many parameters• Proton Density• Relaxation Times (T1, T2, T2*)• Chemical Species (Fat/Water/Metabolites)• Motion
– Flow– Microscopic Motion (Diffusion)
• Contrast Agents– T1, T2, Iron Oxide, Vascular
Axial T1 Brain Axial T2 Brain
Coronal High Res Knee
Axial Post Contrast Liver
ContrastAngiography
Brain FunctionReal-Time Cardiac
Imagine you could do a complete liverexam in a 15-minutetime slot.
Imagine you could acquire the breast images you need in two sequences.
Imagine you could routinely perform fMRI exams.
User imagination ==> Real
“To push the envelop of MR research, we need more powerful systems”
“To enable clinical use, we need advanced MRI applications to be easier and routine for all users”
User said:
Introducing
4 /GE /
Signa® MR750 Signa® MR750…a whole new platformIn-Room Console
Solid State Liquid CooledRF Amp
Optical RF Technology
Dual-Core VRE 2.0 Recon
Express Patient Table
136 ElementCoil Architecture
32 RF Channels
50 / 200 Gradients
UI, Workflow, and Apps
Signa® MR750
The new standard in 3.0T technology
Surface Coils
Table TechnologyOptical RF Technology
Volume Reconstruction Engine
Gradient and RF Resonance Module
The new standard in 3.0T technology
Surface Coils
Table TechnologyOptical RF Technology
Volume Reconstruction Engine
Gradient and RF Resonance Module
5 /GE /
Industry’s most powerful gradients
eXtreme Resonance Module (XRM)• 48 cm FOV with excellent linearity • 50 mT/m amplitude • 200 T/m/s slew rate • Advanced thermal management
enabling unlimited duty cycle• Quiet Technology 2.0 reduces
acoustic noise by up to 50%
Unmatched speed, resolution and coverage
Industry’s most powerful gradients
eXtreme Gradient Driver (XGD)• Water-cooled for improved
performance and reliability• 100% digital control for high gradient
fidelity
Unmatched speed, resolution and coverage
• 4th Generation RF body coil design
• Improved B1 field uniformity for dramatic reductions in shading
• Solid state, water cooled high power RF amplifier
• 100W CW (Continuous Wave) mode
Most advanced RF transmit design New proprietary gradient waveform algorithm with PERFORM 2.0• Manages limitations due to
peripheral nerve stimulation (PNS)
• Enables full use of slew rate for shorter TEs and TRs
Shortest TEs and TRs possible
3D MRA w/PERFORM 2.0
3D MRA
0.870.67
1.831.6
TE TR
Personalized SAR optimization with PERFORM 2.0• Automatically fine-tune SAR
model for each patient• Utilize full system power
within safety limits• Gain up to 17% in
scanning efficiency
High scanning efficiency
200 lbs200 lbs
Personalized SAR modeling in real time for each patient, each exam.
Improved fMRI & DTIThermal Management and Gradient Fidelity
64x64, 22 cm FOV TE/ TR = 25 / 2000 msRamp Sampled (250 kHz BW)43 SlicesDTI Scan time: 5:48
45-60% improvement in slice coverage
6 /GE /
High resolution off-center small FOV
Excellent, uniform fat suppression and high SNR off-center MSK imaging
Gradient Performance
Improved large FOV fat suppression Magnet Homogeneity Whole-abdomen coverage with excellent, uniform fat suppression across the entire FOV
LAVA-IDEAL
Gradient performance and fidelity
3D rendering and reformatted views from axially acquired 2mm slices
High resolution whole brain diffusion Signa® MR750 Gradient and RF ModuleIndustry leading gradient performance• 50 mT/m peak amplitude• 200 T/m/s peak slew-rate• On each axis simultaneously
New High Power, Water-Cooled Gradient Amplifier • 650 amps / 1600 volts• Independent power supply for each axis
Advanced Thermal Management & Noise Reduction• 25 kW heat removal from the gradient coil• Continuous scanning with stressful protocols• 6-8 dB reduction in noise
The highest performance whole-body gradients in the industry
The new standard in 3.0T technology
Gradient and RF Resonance Module Surface Coils
Table TechnologyOptical RF Technology
Volume Reconstruction Engine
Increase signal clarity with OpTixoptical RF technology
Higher SNR and true scalability to 128 channels
• Next generation digital receiver with 4x dynamic range
• In-room integration improves signal integrity
• Optical data architecture reduces signal degradation due to noise
7 /GE /
Posterior CingulateSNR = 52
Posterior CingulateSNR = 66
Previous Generation
Previous Generation
SNR Gain with Optical RF
Optix RF – Up to 27% higher SNR for volumetric studiesClinical Benefits
MR7500
10
20
30
40
50
60
70
Signa MR750
The new standard in 3.0T technology
Gradient and RF Resonance Module Surface Coils
Table Technology
Volume Reconstruction Engine
Optical RF Technology
• Full 64-bit data pipeline with dual blade processing
• Ultra high speed InfinibandTM
interconnect• Direct fiber-optic receiver link
VRE 2.0 for high speed volume reconstruction
64 bit VRE 2.0 blades
Real time reconstructioneliminates delays Eliminates misregistration, less sensitive to tight fields-of-view
ARC parallel imaging
• Full 3D kernel for more accurate reconstruction and improved image quality
• Applies synthesis phase in hybrid space for improved computation performance
Innovative data-driven method
The new standard in 3.0T technology
Gradient and RF Resonance Module Surface Coils
Table TechnologyOptical RF Technology
Volume Reconstruction Engine
• 64 element architecture • Integrated dual port coil
connectors • No compromise 500lb
weight limit
Express patient table
8 /GE /
The new standard in 3.0T technology
Gradient and RF Resonance Module Surface Coils
Table TechnologyOptical RF Technology
Volume Reconstruction Engine
MR750 high-density coils8-Ch HD Breast Array6-Ch Carotid Array
8-Ch HD Knee ArrayHD NV Array
32-Ch Brain Array
Head-Neck-Spine Array
8-Ch Shoulder Array8-Ch HD Wrist Array
8-Ch HD Foot/Ankle Array
8-Ch Body Array
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