Customization: | Available |
---|---|
Classification: | Imaging Diagnostic Equipment |
Type: | X Ray Equipment |
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No. | Item | Specification |
1 | Magnet System | |
1.1 | Magnet Type | Superconductive |
1.2 | Field Strength | 1.5T |
1.3 | Shielding Method | Active |
1.4 | Shimming Method and Type | Active +Passive + Dynamic |
1.5 | Magnet stability | ≤0.1ppm/h |
1.6 | Homogeneity (DSV,VRMS) | |
1.6.1 | 45cm | ≤0.832ppm |
1.6.2 | 40cm | ≤0.323ppm |
1.6.3 | 30cm | ≤0.107ppm |
1.6.4 | 20cm | ≤0.041ppm |
1.6.5 | 10cm | ≤0.01ppm |
1.7 | Length of magnet(exclude cover) | 157cm |
1.8 | Inner diameter of magnet | 600mm |
1.9 | 5 Gauss fringe field(X,Y,Z axis) | ≤2.5mx 2.5mx4.0m |
1.1 | Total capacity of liquid helium (100% liquid helium | 800L |
full filled ] | ||
1.11 | Filling liquid helium period | ≥4 Years |
1.12 | Liquid helium"zero"consumption technology | Yes |
2 | Gradient System | |
2.1 | Maximum gradient field (single axis,invalid) | 41mT/m |
2.2 | Maximum gradient slew rate(single axis, invalid) | 187mT/m/ms |
2.3 | Minimum gradient rise time | 0.22ms |
2.4 | Maximum gradient field and slew rate reached at | Yes |
the same time | ||
2.5 | Gradient cooling system | Water cooling |
2.6 | Full digital real-time transmit and receiving | Yes |
gradient control system | ||
3 | RF System | |
3.1 | Max RF amplifier power | 18kW |
3.2 | Center frequency | 63.87MHz |
3.3 | Real-time digital RF energy monitoring | Yes |
3.4 | Real-time digital RF short-term accumulation | Yes |
monitoring | ||
3.5 | Real-time digital RF long-term accumulation | Yes |
monitoring | ||
3.6 | Parallel working RF receiver channels | 8/16 |
3.7 | Parallel working RF A/D converters | 8/16 |
3.8 | Each coil unit has corresponding pre-amplifier | Yes |
3.9 | Parallel acquisition technology platform | Yes |
3.1 | Maximum bandwidth of each parallel | ≥1.0MHz |
acquisition receive channels | ||
3.11 | Transmission bandwidth | 550kHz |
3.12 | Maximum receiver signal resolution | ≥16bit |
3.13 | Fully digital RF system | Yes |
3.14 | RF receiving amplifier noise level | ≤0.45dB |
3.15 | Multi-channel phased array receiver coil | |
3.15.1 | Head coil | Available |
3.15.2 | Neck coil | Available |
3.15.3 | Body coil | Available |
3.15.4 | Knee coil | Available |
3.15.5 | Shoulder coil | Available |
3.15.6 | Ankle coil | Available |
3.15.7 | Wrist coil | Available |
3.15.8 | Breast coil | Available |
Remark The coil configuration is subject to the | ||
final contract | ||
4 | Scan environment | |
4.1 | Patient table driven mode | Motor-driven |
4.2 | Position accuracy | ≤0.5mm |
4.3 | Table length | 2400mm |
4.4 | Horizontal movement range | 2055mm |
4.5 | Horizontal motion maximum speed | ≥200mm/s |
4.6 | Patient table lowest height | 675mm |
4.7 | Maximum patient weight | 200kg |
4.8 | Feet-first entry mode | Yes |
4.9 | Table can be controlled by machine cover in case of | Yes |
emergency | ||
4.1 | Table control system on both side of rack | Yes |
4.11 | Lighting, ventilation, call system | Be able to adjust |
5 | Computer system | |
5.1 | MRI software | BASDA |
5.2 | System software | WINDOWS7 |
5.3 | CPU | ≥3.1GHz |
5.4 | Main memory | ≥4GB |
5.5 | Hard disk | ≥500GB |
5.6 | Color LCD monitor | 24" |
5.7 | Monitor resolution | 1920×1200 |
5.8 | External storage | DVD/USB |
5.9 | DICOM3.0 | Yes |
6 | Scanning parameter | |
6.1 | Spin-echo sequence | Yes |
6.1.1 | SE 2D/3D | Yes |
6.1.2 | FSE 2D/3D | Yes |
6.1.3 | FSE sharing | Yes |
6.1.4 | Single shot FSE | Yes |
6.1.5 | Spin echo fat-suppression imaging | Yes |
6.1.6 | Spin echo frequency fat suppression imaging | Yes |
6.1.7 | Spin echo water suppression imaging | Yes |
6.2 | GRE 2D/3D | Yes |
6.3 | DWI | Yes |
6.3.1 | Max.b value | 10000 |
6.4 | IR sequence | Yes |
6.4.1 | IR | Yes |
6.4.2 | FIR(water /fat suppression) | Yes |
6.4.3 | FLAIR | Yes |
6.4.4 | STIR | Yes |
6.4.5 | Water-fat Separation | Yes |
6.5.1 | Pre-saturation | Yes |
6.6 | Gating | Yes |
6.7 | Accelerated sequence | Yes |
6.8 | Anti-movement scanning technology | Yes |
6.9 | Min.2D thickness | 0.1mm |
6.1 | Min.3D thickness | 0.05mm |
6.11 | Max.FOV | 50cm |
7.6.5 | Applied direction of parallel acquisition factor | X,Y,Z |
7.7 | Artifact correction technology | Yes |
7.7.1 | Fluid compensation | Yes |
7.7.2 | Respiratory compensation | Yes |
7.7.3 | Head motion artifact correction | Yes |
7.7.4 | Elimination of magnetic sensitive artifact | Yes |
7.7.5 | Eddy current adaptive correction | Yes |
7.7.6 | Gradient linearity correction | Yes |
7.7.7 | Multi-echo phase correction | Yes |
7.8 | Rapid automatic correction technology | Yes |
7.9 | Automatic frequency tracking technology | Yes |
7.1 | Automatic coil recognition technology | Yes |
7.11 | Automatic phase correction technology | Yes |
7.12 | Echo navigation technology | Yes |
7.13 | RF balance drive technology | Yes |
7.14 | RF de-phase technology | Yes |
7.15 | Gradient de-phase technology | Yes |
7.16 | Section scanning technology | Yes |