MRI Scan Equipment

No.

Item

Specification

1

Magnet System

1.1

Magnet Type

Permanent magnet with automatic constant temperature system

1.2

Field strength

0.5T

1.3

Magnet shape

Dual-column

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)

274°

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

410mm

6.2

Min. FOV

5mm

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