|
No. |
Item |
Specification |
|
1 |
Magnet System |
|
|
1.1 |
Magnet Type |
Permanent magnet with automatic constant temperature system |
|
1.2 |
Field strength |
0.35T |
|
1.3 |
Magnet shape |
C-shape |
|
1.4 |
Homogeneity (40cm, DSV, VRMS) |
≤2.5ppm |
|
1.5 |
Shim method |
Active/Passive/Dynamic |
|
1.6 |
Magnet vertical gap |
40cm |
|
1.7 |
Accessibility (Horizontal opening angle) |
>270° |
|
1.8 |
5 Gauss fringe field |
2.5m*2.5m*2.5m |
|
2 |
Gradient System |
|
|
2.1 |
Gradient field strength (Single Axis) |
25mT/m |
|
2.2 |
Gradient slew rate (Single Axis) |
75mT/m/ms |
|
2.3 |
Rise time |
0.3ms |
|
2.4 |
Gradient cooling system(Gradient coils and power electronics) |
Air |
|
3 |
RF System |
|
|
3.1 |
Spectrometer |
Fully digital |
|
3.2 |
RF system type |
Digital Transmit and Receive |
|
3.3 |
Number of RF channel |
4 |
|
3.4 |
Transmitter amplifier peak power |
6kW |
|
3.5 |
RF bandwidth of receiver |
Each 400KHz |
|
3.6 |
Dynamic range |
≥80dB |
|
3.7 |
Noise factor |
0.3dB |
|
3.8 |
Coil type |
Phase array |
|
4 |
Patient communication |
|
|
4.1 |
Max. patient weight |
200Kg |
|
4.2 |
High accurate position assist |
Yes |
|
4.3 |
Localizer |
Yes |
|
4.4 |
Position accurate |
≤1mm |
|
4.5 |
Position accessories |
Yes |
|
4.6 |
Emergence call |
Yes |
|
4.7 |
Communication system |
Yes |
|
5 |
Computer system |
|
|
5.1 |
Host computer |
Dual core |
|
5.2 |
System software |
BASDA |
|
5.3 |
OS |
WINDOWS 7 |
|
5.4 |
CPU clock rate |
≥2.8GHz, be able for extension |
|
5.5 |
Main memory |
≥2GB, be able for extension |
|
5.6 |
Color LCD monitor |
24” |
|
5.7 |
Keyboard and mouse |
Standard |
|
5.8 |
Hard disk |
≥250GB, be able for extension |
|
5.9 |
Media driver |
CRW / DVD |
|
5.10 |
DICOM 3.0 |
Yes |
|
5.11 |
Ethernet |
Yes |
|
6 |
Scanning parameter |
|
|
6.1 |
Max. FOV |
400mm |
|
6.2 |
Min. FOV |
20mm |
|
6.3 |
Min. 2D Thickness |
1mm |
|
6.4 |
Min. 3D thickness |
0.1mm |
|
6.5 |
Max. Image matrix |
1024*1024 |
|
7 |
Scanning sequence &imaging technology |
|
|
7.1 |
Spin echo 2D/3D (SE 2D/3D) |
Yes |
|
7.2 |
Multi-slice multi-echo(MSME) |
Yes |
|
7.3 |
Gradient echo(GRE 2D/3D) |
Yes |
|
7.4 |
Steady state process gradient echo( SSPGRE) |
Yes |
|
7.5 |
Fast spin echo (FSE) |
Yes |
|
7.6 |
Fast double echo(FDE) |
Yes |
|
7.7 |
Fast recover fast spin echo(FRFSE) |
Yes |
|
7.8 |
Single shot fast spin echo(SSFSE) |
Yes |
|
7.9 |
Multi shot fast spin echo (MSFSE) |
Yes |
|
7.10 |
Inversion recovery (IR) |
Yes |
|
7.11 |
Inversion recovery fast spin echo (IRFSE) |
Yes |
|
7.12 |
Short time inversion recovery (STIR) |
Yes |
|
7.13 |
Fluid attenuated inversion recovery (FLAIR) |
Yes |
|
7.14 |
Gating technology |
Yes |
|
7.15 |
Breath holding scan |
Yes |
|
7.16 |
TOF 2D MRA |
Yes |
|
7.17 |
TOF 3D MRA |
Yes |
|
7.18 |
Diffusion weighted imaging (DWI) |
Yes |
|
7.19 |
Max. b Value |
1000s/mm2 |
|
7.20 |
Magnetization transfer (MTC) technology |
Yes |
|
7.21 |
MIP |
Yes |
|
7.22 |
MinIP |
Yes |
|
7.23 |
3D position |
Yes |
|
7.24 |
Pre-saturation technology (PS) |
Yes |
|
7.25 |
Pre-saturation adjustment technology |
Yes |
|
7.26 |
Part metal implant scan technology |
Yes |
|
7.27 |
Automatic coil tuning |
Yes |
|
7.28 |
MRM |
Yes |
|
7.29 |
MRU |
Yes |
|
7.30 |
MRCP |
Yes |
|
7.31 |
Online image filtration |
Yes |
|
7.32 |
Online post procession |
Yes |
|
7.33 |
Optimal algorithm of active shimming |
Yes |
|
7.34 |
Scan sequence queuing |
Yes |
|
7.35 |
Multi-layer and multi-angle scanning technology |
Yes |
|
7.36 |
Optimize bandwidth acquisition technology |
Yes |
|
7.37 |
Flow compensation |
Yes |
|
7.38 |
Parallel acquisition technology |
Yes |
|
7.39 |
Section acquisition technology |
Yes |
|
7.40 |
Scan parameter preset |
Yes |
|
7.41 |
Oversampling technology |
Yes |
|
7.42 |
Image fusion technology |
Yes |
|
7.43 |
Artifact suppression technology (K_Rotat) |
Yes |
|
7.44 |
Thin imaging technology |
Yes |
|
7.45 |
Movie playback technology |
Yes |
|
7.46 |
Post processing package |
Yes |
