MM-MRI002 Open MRI Systems

Specification :

Magnet System :

• You can choose any of the following magnet types: 0.2T, 0.3T, 0.35T, 0.4T, 0.5T open MRI systems)
• Open Permanent magnet, eddy current free & self-temperature control
• Self-temperature control system
• Shell
• Locating system

Magnet System :

• type: Permanent magnet, eddy current free, open C type & self-temperature control
• Field homogeneity: < ±2ppm(FWHH)/20cm DSV < 5ppm(VRMS)/40cm DSV
• Active shim: < ±1ppm(FWHH)/20cm spherical surface DSV < ±2ppm(VRMS)/40cm spherical surface DSV
• Vertical gap distance: 40cm

Image specifications :

Image types: T1 weighted image, T2 weighted image, T2* weighted image, PD weighted image, diffusion weighted image, fat suppressed image, water suppressed image, Magnetic resonance hygrography (MRCP MRM MRU), MRA Field of view: 40mm-400mm Acquisition matrix: 64x64-512x512 Graphics matrix max.: 1024x1024 Body in 30cm FOV: 1.5mm Head in 24cm FOV: 1mm

Orientation :

Slice orientation: transverse, sagittal, coronal, free oblique, multi-slice & multi-range Slice gap: 0-20mm

Auto pre-scan function :

Auto RF correction, auto frequency lock, auto gain, auto coil identification, auto coil tuning, active shim

RF transmitting & receiving system :

• Type of transmitter & receiver: Digital
• Frequency range: DC-22MHZ
• Maximum receiver bandwidth: 1.25MHZ
• Pre-amplifier: gain 30dB
• Noise figure: 0.3dB
• RF amplifier: ≥6kw

Gradient system :

Amplifier :

• Field strength: single axis 15mT/m, effective 25.9mT/m
• Slew rate: single axis 50mT/m/ms, effective 86mT/m/ms
• Linearity: 40cm*40cm*38cm ellipsoid<5%

Receiving system :

Head, Body (big), Body (small), Neck, Knee, Shoulder, Wrist coil each

Gradient System :

• Type of transmitter & receiver: Digital
• Gradient amplifier
• X Y Z gradient coil

Patient System :

• Patient table
• Doctor-patient communication system

Computer System :

• DELL imaging workstation
• dual-core processor (≥ 2.8GHz), Graphics memory: 128MB, Memory: 2 GB, Hard driver: 160 GB, Removable storage: CD+RW, 21" TFT monitor with at least 1280x1024resolution
• Console table

Software Package :

• The MRI system software, including: Field homogeneity package, Basic imaging sequence package, system controlling package, Data processing package, Image reconstruction package, image processing and analysis package, Self-default analysis package, Hydrography image package, Angiography image package, Diffusion image package and Laser camera communication package (DICOM 3.0)

Pulse sequence :

• Spin echo (SE)
• Multi-slice & Multi-echo (MSME)
• Fast Spin Echo (FSE)
• Single shot fast spin echo (SSFSE)
• Multi shot fast spin echo (MSFSE)
• Inversion recovery (IR)
• Short inversion tau IR (STIR)
• Fluid attenuated IR (FLAIR): T1W, T2W
• Inversion recovery fast spin echo (IRFSE)
• Gradient echo (GRE): 2D/3D
• Steady state process GRE (SSPGRE)
• MRA: TOF 2D/3D
• Echo Planar Imaging (EPI)

Image display & post processing :

• Image post processing: filter, zoom, cut, text illustration & elimination, image offset, auto adjustment of window length & width
• Image analysis: interested area illustration, distance measurement

Accessories :

• Mattress, Pillows, testing samples, warning signs

Option systems :

• 0.2T
• 0.3T
• 0.35T
• 0.4T
• 0.5T

Coils :

• Head, Body (big), Body (small), Neck, Knee, Shoulder, Wrist coil each, …etc