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No. | Technique Description | Parameter | Remark |
1 | Magnet System | ||
1.1 | Magnet Type | Permanent Magnet Automatic constant temperature system |
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1.2 | Field Strength | 0.3T |
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1.3 | Magnet Shape | C-shape |
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1.4 | Homogeneity(40cm, DSV, VRMS) | ≤2.0ppm |
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1.5 | Shim Method | Active/Passive |
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1.6 | Magnet Vertical Gap (Cover) | 40cm |
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1.7 | Accessibility(Horizontal Opening Angle) | 320° |
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1.8 | 5 Gauss fringe field | X-axis: horizontal ≤2.5m Y-axis: Vertical ≤2.5m Z-axis: horizontal ≤2.5m |
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2 | Patient Couch and Communication | ||
2.1 | Patient Couch Driven mode | Motor-driven |
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2.2 | Max. Patient Weight | ≥200kg(440lbs) |
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2.3 | Patient Positioning Tools | Laser Light Localizer for positioning of center slice Motor-driven transfer to center of imaging volume |
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2.4 | Position accuracy | ±1mm |
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2.5 | Emergency Call Key | Yes |
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2.6 | Intercom System | Yes |
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3 | Gradient System | ||
3.1 | Gradient Field Strength(Single Axis) | ≥28mT/m |
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3.2 | Gradient Slew Rate (Single Axis) | ≥93mT/m/ms |
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3.3 | Rise Time | ≤0.3ms |
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3.4 | Gradient Cooling System(Gradient coils and Power electronics) | Air Cooling |
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4 | RF System | ||
4.1 | RF System Type | Digital Transmit and Receive |
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4.2 | Number of RF Channel | 4 |
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4.3 | Transmitter Amplifier Peak Power | 6kW |
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4.4 | RF Bandwidth of Receiver | ≥1MHz |
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4.5 | PA Head Coil | Yes |
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4.6 | PA Neck Coil | Yes |
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4.7 | PA Body/Spine Coil (17 inch) | Yes |
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4.8 | PA Body/Spine Coil (20 inch) | Yes |
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4.9 | PA Knee Coil | Yes |
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4.10 | PA Shoulder Coil | Yes |
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5 | Computer System | ||
5.1 | Host Computer | DELL Computer (Professional for MRI) |
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5.2 | System Software | Windows 7 |
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5.3 | Operation Software | APEX |
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5.4 | CPU Clock rate | 3.6GHz |
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5.5 | Main Memory | 2GB |
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5.6 | Color LCD Monitor | 19” |
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5.7 | Keyboard and Mouse | Standard |
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5.8 | Image Reconstruction Speed(256 x 256 Matrix) | 1500 FPS. |
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5.9 | Hard Disk | 500 GB |
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5.10 | Image Storage Capacity(256 x 256 Matrix) | 2,650,000 images |
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5.11 | Media Driver | DVD RW |
magnetic resonance imaging machine | ||
Max. Patient Weight ≥200kg(440lbs) | Patient Couch Driven mode Motor-driven |