ppt
TRANSCRIPT
NEUSOFT NSM-P035
Super Open
Magnetic Resonance Imaging System
Outline
MRI Introduction –principles 、 features 、 clinical
applications、 development trend
Features of NEUSOFT MRI NSM-P035 –hardware :magnet、 RF、 gradient、 computer
–software: imaging technology、 technical
specifications、 sequence、 operating interface
Principles of MRI
Nuclear magnetic resonance phenomenon
Hydrogen nucleus —proton
Spin and Magnetic Moment
Pri
nci
ple
s o
f M
RI
Magnetization
Proton Precession
Pri
nci
ple
s o
f M
RI
Resonance Relaxation
Pri
nci
ple
s o
f M
RI
MR Signal
Pri
nci
ple
s o
f M
RI
Features of MRI
Non-invasive
examination
Multi-type of images
High image contrast
Slicing at any orientation
No contrast agent
required in MRA
Fea
ture
s o
f M
RI
Non-invasive examination
CT 、 X-ray 、 Nuclear medicine– ionizing radiation
Radiation energy of MRI is 1/1012 that of X-ray system
No definite trauma has been certified since more than 20
years clinical application
Pregnant woman can be inspected by MRI, not CT
MRI interventional therapeutic procedure , no trauma to
doctor and patient
Fea
ture
s o
f M
RI
Multi-type of images
T2 weighted
Water suppression
IR T2 weighted
T1 weighted
IR T1 weighted
To get more diagnosis information by comparing various
images
To improve detectable rate and accuracy of clinical diagnosis
Fea
ture
s o
f M
RI
High Image Contrast
Water
Fat
Protein
Skeleton
Gas
Fea
ture
s o
f M
RI
Slicing at any orientation
Fea
ture
s o
f M
RI
No Contract Agent Need in MRA
In-flow and out-flow
effect
TOF
PC
MRI Clinical Applications
MRI Diagnose Advantage Parts
Nervous system
Spine 、 extremity
Muscle 、 convective tissue
Angiography system
Pelvis
Substantive organs
MR
I Clin
ical
Ap
plic
atio
ns Head
Brain Stem Infarct
Coronal T2
Coronal FLAIR
MR
I Clin
ical
Ap
plic
atio
ns
Pituitary Tumor
Arrow T1
Coronal T1
MR
I Clin
ical
Ap
plic
atio
ns
Spine and Spinal Cord
Spinal Cord Malacosis
Sagittal T1 Sagittal T2
MR
I Clin
ical
Ap
plic
atio
ns
Lung Cancer Lumber Transfer
Axial T1
Sagittal T2
MR
I Clin
ical
Ap
plic
atio
ns
Extremity 、 Joint
MR
I Clin
ical
Ap
plic
atio
ns
MR
I Clin
ical
Ap
plic
atio
ns
Angioma of Liver
Abdomen
Pelvis
MR
I Clin
ical
Ap
plic
atio
ns
MR
I Clin
ical
Ap
plic
atio
ns Breast
MR
I Clin
ical
Ap
plic
atio
ns Strongpoint of MRI Imaging
No trauma——meet for patient requirement for health care
More detectable rate——decrease misdiagnosis
More accurate diagnosis
-- reduce wrong diagnosis
More quantitive information
–Increase estimation prognosis accuracy
–Assist making better therapy plan
More impersonality evidence——decrease law risk
MRI Development Trend
High field
more than 1.5T 30%
Permanent magnet open 70%
Medium field quits basically from market
MRI Market Status
MR
I Dev
elo
pm
ent
Tre
nd Comparison of the Kinds of Magnet
Item\Kind Permanent magnet
Conventional resistive magnet
superconducting magnet
Field strength low low high
Image quality low low high
function less less more
Maintenance cost
less medium more
price low medium high
Trouble rate low medium high
MR
I Dev
elo
pm
ent
Tre
nd
Clinical Application Comparison of Permanent and Superconducting Magnet
95%
Conventional clinical application
Majority advanced function
Low field permanent
5%
Claustrophobic patient
Fat patient
Less embedded metal
Joint motion analysis
MRI intervention
High field superconducting
5%
Imperceptible pathological
changes
Functional imaging
Spectrum analysis
MR
I Dev
elo
pm
ent
Tre
nd
Evolvement History of Permanent Open MRI
MR
I Dev
elo
pm
ent
Tre
nd
NEUSOFT MRI Technology Development
Sparkler 1.5T
Superconducting
1.5T
NAM-P023A
C-type Super Open 0.23T
NSM-P035
C-type Super Open 0.35T
NSM-P035 Permanent Magnet MRI
Most successful magnetic field strength in permanent magnet systems
NSM-P035 facts
SNR is 2.66 times more that 0.2T , improve
greatly image quality
Double scan speed of 0.2T, increase scan speed
Increase spatial resolution, 0.2mm slice
thickness
Provide firm foundation for future upgradeNS
M-P
035
Per
man
ent
Mag
net
MR
I
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Relation between Image SNR and magnet
strength
0.2T 0.3T 0.35T Super 0.5T
SNR
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Noise Effect upon Image Quality
NS
M-P
035
Per
man
ent
Mag
net
MR
I Advanced Magnet Technology
Type: permanent magnet
Advanced permanent magnet material -- NdFe
Whole integrated foundry
Self-shield technology
Eddy current free technology
Self-constant temperature technology
–Insure long stable operation
The most advanced open magnet—C-type 2-column super open
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Super open—4 sides open
Decrease patient claustrophobic feelin
g , expand patient volume
Positioning of any part of patient at th
e center of magnet ensures the high i
mage quality
Convenient for interventional treraphy
NS
M-P
035
Per
man
ent
Mag
net
MR
I
The most convenient design of patient couch
Couch is separate from magnet
2 D movement with maximum
distance 160cm
Accurate laser localization
system
Easy system positioning
Space saving
Minimal Installation Area Less Environment Requirement
NS
M-P
035
Per
man
ent
Mag
net
MR
I
30m2 installation area only
Lowest height 3m
Temperature control only need
popular air conditioner
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Powerful Gradient System Gradient Amplifier
–Maximum gradient strength: 16mT/m, e
nsure high spacial resolution
–Rising time: 300μs( up to 98%)
–Slew rate: 52mT/m/ms, increase the sc
anning speed
–air cooling, no additional expenditure
Gradient coils
–plane fingerprint design
–assure accurate spacial positioning
High Efficient RF System
RF Amplifier
– RF power reach to 5KW, which leads to the high
signal frequency
RF transmitter coil
– Quanture(QD) design
– Signal-to-Noise ratio is 40% higher than normal c
oil
longitudinal resonance signal efficiency is higher tha
n transversal resonance signal efficiency by 40%
NS
M-P
035
Per
man
ent
Mag
net
MR
I
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Comprehensive Receiving coils
7 standard configuration :QD head coil QD Neck Coil QD Body Coil
QD Extremity Coil Flat Spine Coil Breast Coil
NS
M-P
035
Per
man
ent
Mag
net
MR
I Computer System
High configuration and performance
–CPU: Pentium IV 2.4GHz
–RAM : 1.5GB
–HD : 120GB -- capability of storing 0.9 million images
–peripheral storage : 2.3GB MO or 640MBCD-R
–monitor : 21” SONY high rosolution color display
monitor resolution : 1600×1200
Windows operating system, easy to learn and use
Abundant in backup source, minimum cost in maintenance and up
grade
Optional Accessories
Mutual intercom system
Hi-Fi stereo sound
Laser Imager
NS
M-P
035
Per
man
ent
Mag
net
MR
I
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Advanced Imaging Techniques
Multi-slice/Multi-angle
Gating Technology
Partial echo
Flow compensation
Anti-wrap-around artifact elimination
Multi-region pre-saturation
Optimized bandwidth
Optimized data acquisition
NS
M-P
035
Per
man
ent
Mag
net
MR
I Performance Specifications
• TE(min): 2ms
• TR(min): 6ms
• FOV: 26-400mm
• Slice thickness(min) 2D: 2mm
• Slice thickness(min) 3D: 0.2mm
• Number of slices : 64(2D)
128(3D)
Thickness
2mm
FOV 50mm
Abundant Imaging Sequences
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Spin Echo (SE)
Gradient Echo ( GE )
IR, FLAIR, STIR
MSME
MRA
FSE
MRU 、 MRCP )
3D GE , 3D SE
DWI
Spin Echo( SE)
neck sag. knee joint sag.
NS
M-P
035
Per
man
ent
Mag
net
MR
I
The most common sequence in clinical routine
Clear image
Display anatomic image
Only apply to T1 weighted imaging at present
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Fast Spin Echo (FSE)
fast image acquisition commonly used for T2 weighted imaging
Liver T2/W Head
T2/W
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Gradient Echo (GE)
T1/W T2/W
Fast image acquisition
Sensitive to bleeding
IR , FLAIR
T2/W Water suppression N
SM
-P03
5 P
erm
anen
t M
agne
t M
RI
Suppress free water
Infarct displayed clear
Judge focal composition
IR, STIR
T1/W Fat suppression
Fat suppression signal
Judge focus composition
Other parts displayed much clearer
NS
M-P
035
Per
man
ent
Mag
net
MR
I
MRA
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Carotid MRA
Need not media contract
TOF
MOSTE
MTC
MIP projection
Vein and artery displayed separately
MRCP , MRU
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Bile duct Obstruction
MRCP and MRU
–Magnetic Resonance Cholangiop
ancreatography (MRCP)
–Magnetic Resonance Urograpgy
(MRU)
–Magnetic Resonance Myelograp
hy (MRM)
Mainly diagnose obstruction expandi
ng
NS
M-P
035
Per
man
ent
Mag
net
MR
I 3DFE
Super spatial resolution scanning
Reconstruction at any orientation
Narrow-space reconstruction
Improve greatly diagnosis capacity of small organ and small focus
Diffusion Weighted Imaging(DWI)
Discover early brain infarct
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Powerful User-friendly Software
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Own copy-right
User-friendly design
User-friendly interface, easy to operate
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Pre- registration
Various parameters available to
be modified
Self-defined sequence
User -defined sequence library
User-friendly Browse Functions
NS
M-P
035
Per
man
ent
Mag
net
MR
I
real-time multiple image display
Multi-sequence parataxis images
contrast
Multi-case review simultaneously
Image rotation, flip
Image zoom in/out/panning
Continues window width and level
adjustment
NS
M-P
035
Per
man
ent
Mag
net
MR
I Advanced Search Function
As many as six search items with combination
search condition
Sorted by anyone of six items
The image can be obtained with associated search
result.
Comprehensive Image Processing
NS
M-P
035
Per
man
ent
Mag
net
MR
I
ROI measure (maximum, minimum, standard
deviation, interval)
ROI cut/paste
Image mark Annotation
Dynamic analysis (average, curve)
Filtration function dramatically enhance the
image quality
3 D image processing
NS
M-P
035
Per
man
ent
Mag
net
MR
I
MIP (Max intensity projection)
MRP (Multi Reconstruction of Plane)
Cine Display
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Observe blood vessel flow
Exam focus solid form
3D rotary 3D image
High Efficient Photo Interface
NS
M-P
035
Per
man
ent
Mag
net
MR
I
DICOM compatible transmission
Support a variety of image format
Filming preview
System Maintenance
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Operator grant user right
Database archive
Default/resetting system parameters
Operation training
Maintenance training
Installation training on site
After-sales service training
Effective Training Program
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Software free upgrade
NS
M-P
035
Per
man
ent
Mag
net
MR
I
Sequence is the core technology in the developme
nt of MRI system
Superconducting sequence technology is transpla
nting to permanent magnet
Only free software upgrade can
– ensure the system keep advanced t
echnology
– prolong system effective lifetime
Powerful capability on research and development
Fulfilled our commitment
–Users with version 1.0 have been upgraded to
2.0
–The version 2.2 is going to released soon.
Highest field strength with the best
image in permanent MRI system
Abundant image sequences, user-
friendly operating interface
High performance-cost ratio , and low
maintenance cost
Free software upgrading thinks with
your future
NSM-P035 Summary
NS
M-P
035
Per
man
ent
Mag
net
MR
I