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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

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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

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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

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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

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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

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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

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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

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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

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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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