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Computed Tomography
CT-C2000
CT-C3000
CT-C3000Dual
Proviz 8Multi-slice CT Scanner
1998
2002
1999
2000
Whole body CT scanner
Spiral CT Scanner
Dual-slice CT Scanner
2003
CT-C3000
CT Working Principle
Data acquisition Data acquisition
Image displayImage display
Reconstruction and post-processingReconstruction and post-processing
X-ray generationX-ray generation
Scanning In
terv
al
Scanning In
terv
al
Conventional ScanningConventional Scanning
◎ Scanning speed is restricted because of non-continuous scanning.
Spiral Scanning = Volume Scanning = Volume Scanning
Spiral ScanningSpiral Scanning
Working Principle of Spiral CT ScannerWorking Principle of Spiral CT Scanner
◎ Continuous rotation of X-ray tube and detectors
◎ Continuous emission of X-ray
◎ Continuous couch move-in at an even speed
◎ Continuous data acquisition
Scanning speed is increased greatly
Volume scanning
More easy to patient exam
Increase outpatient
Reduce motion artifacts
Lower dosage of enhancement medium
Reduce mechanical faults
Reduce the missed diagnosis
Image post-processing making
3D visualization into reality
Advantage of Spiral ScanningAdvantage of Spiral Scanning
+
Reduce breath and motion artifacts
◎ More easy to patient exam
Breath motionSuccessful holding breathA
dva
nta
ge
of
Sp
iral
A
dva
nta
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of
Sp
iral
S
can
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gS
can
nin
g
◎ Increase outpatient
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pir
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Sca
nn
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Sca
nn
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To acquire different phases images of viscera
◎ Lower usage of enhancement medium
Artery phase Portal vein phase
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Sca
nn
ing
Sca
nn
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Nodular pathologic changes can be displayed clearly.
◎ Thin slice scanning of large range
10mm scanning 3mm scanning
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Sca
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Sca
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MPR 3D
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gA
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anta
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of
Sp
ira
l Sca
nn
ing
◎ High speed
◎ Thin slice
◎ Strong capability of spiral scanning
◎ High quality images
◎ Rich functions of image processing
Advantage of CT-C3000Advantage of CT-C3000
360°/sec.
Clinical application：
◎ Volume scanning of ROI can be achieved with h
olding breath one time
◎ Reduce the missed diagnosis rate of small focu
s without interval data acquisition
◎ Reduce breath and motion artifacts
◎ Easy to acquire enhancement image
High Speed
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Thickness of 1mm
Clinical Application：
Thin slice
◎ Increase diagnosis rate of small focus
◎ reconstruction with high resolution
◎ The base of 2D and 3D reconstruction
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Key parts are imported from world leading manufactures.
Strong capability of spiral scanning
Continuous scanning of 80sec.
Basis
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T-C
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X-ray Tube
Made by VARIAN Co. of U.S.A.
Metal tube
Dual focus
◎ Special designed for spiral CT of 1 and sub-second CT scanner
◎ Large heat storage capacity： 3.5MHU
◎ High heat dispassion： 750KHU／min.Ad
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Advantage of Metal TubeAdvantage of Metal Tube
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◎ Large heat storage capacity, high heat dispassion
and strong capability of spiral scanning
◎ Increase images quality and extend service life of
tube with restraining electron radiation.
Advantage of metal tubeAdvantage of metal tube
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Advantage of metal tubeAdvantage of metal tube
Large range continuous scanning can be achieved with 175mA and 80s.
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Dual focus technique
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Contrast the large focus with the small oneContrast the large focus with the small one
Large focus
Small focusAd
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◎ Focus of electron beam on the a
node target is the same with heel o
n the floor.
◎ Sand blast will appear on anode
target because of small focus.
◎ Image quality will be effected.
Heel effect of focus
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Made by Spellman Co.
Apply high voltage and phase controlling technology
◎ Power： 28KW
◎ Small volume and light weight
◎ Patent controlling technique
◎ Reduce noise effectively
◎ Reduce fluctuation of tube current and voltage
◎ Tube current and voltage can be controlled effectively and a
ccurately.
High voltage generatorHigh voltage generator
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More……More……
Super high speed GOS detectorSuper high speed GOS detector
Slip ring and brush assembly made of silver plated copperSlip ring and brush assembly made of silver plated copper
Strong computer systemStrong computer system
Advanced system designAdvanced system design
Guarantee of high quality imageGuarantee of high quality image
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Detector
◎ Made by Hamamatsu Co. of Japan
◎ Super high speed GOS solid detectorSuper high speed GOS solid detector
◎ Channel number： 688
Guarantee of high quality imageGuarantee of high quality image
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◎ Images acquired from high-speed and long-time spiral sca
nning are much better than that of other materials.
Super high speed GOS detectorSuper high speed GOS detector
◎ Stand for the most leading level of t
he world
◎ X-ray absorptivity:99.98%
◎ Response speed: 40% higher than t
hat of other materials
◎ Extra-short afterglow effect
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Made by Litton Co.
Silver plated copperSilver plated copper
Slip ring and brush assemblySlip ring and brush assembly
◎ Signals are transmitted accurately in real time.
◎ High stability and wearability
◎ 2000000 times is guaranteed by Litton Co..
◎ Low cost maintenance
Guarantee of high quality imageGuarantee of high quality image
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Strong computer systemStrong computer system
Open workstation with Pentium IV multi-CPU
◎ Multi-task can be processing in parallel mode.
◎ Image reconstruction with high speed
◎ Huge capacity of image storage
◎ Easy to upgrade and low cost of maintenanc
e
1sec.
120000 images
Guarantee of high quality imageGuarantee of high quality image
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◎ Main frequency： 2.0G
◎ Memory： 512MB
◎ Hard disk： 80GB
◎ Multi-medium of storage： 1.3GB MO disk,external hard disk,CD-
R
◎ Monitor： 21″ real-flat high resolution color monitor Ad
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Computer system
Rich functions of image processing
Rich functions of image processing
◎ Strong development capability of our company
◎ Multi-arithmetic application
◎ Comprehensive image post-processing
◎ High quality images
◎ BHC technology
◎ VAC technology
◎ MAC technology
◎ Adaptive steak artifacts reduction software
◎ High resolution scanning technology
◎ MAR software
◎ Lung enhancement software
◎ Advanced noise reduction software
Magic of software
AfterBefore( 5mm)
Mag
ic o
f so
ftw
are
MAC
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ic o
f so
ftw
are
Lung enhancement
Mag
ic o
f so
ftw
are
Inner ear
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ic o
f so
ftw
are
◎ MPR
◎ CMPR
◎ SSD
◎ VR
◎ VE
◎ MIP/MINP
◎ CTA
3D Technology
Mag
ic o
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ftw
are
MPRMPR
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ic o
f so
ftw
are
MPRMPR
Mag
ic o
f so
ftw
are
CMPRCMPR
Mag
ic o
f so
ftw
are
MIPMIP
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ic o
f so
ftw
are
SSDSSD
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ic o
f so
ftw
are
VEVE
VRVR
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ic o
f so
ftw
are
Friendly operating interfaces
Human-friendly Design
◎ Presetting protocols
◎ Scanning can be completed automatically.
Clear operation steps
Hu
man
-fri
end
ly D
esig
n
Equipped with remote controlling
◎ 70cm gantry aperture
◎ 25°gantry tilt
◎ Load capacity of couch is 200Kg
◎ Clear voice prompt
Comfortable
Hu
man
-fri
end
ly D
esig
n
CT-C3000DualCT-C3000Dual
2 images can be acquired in 360°/Sec.
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ual
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ce C
T s
can
ner Scanning speed doubled
High speed scanning
◎ Easy to patient exam, reduce breath and motion artifacts
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Breath artifacts
Successful holding breathAd
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T s
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Three phase scanning of liver
Scanning range： 20cm
Slice thickness： 10mm
20 cm
Spiral CT scanner
Artery phase： 20seconds
Dual-slice spiral scanning
Artery phase ： 10seconds
Best continuous enhancement: about 10seconds
High speed scanning
◎ Multi-organ multi-phase images acquired accurately
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High speed scanning
Artery Portal vein phase
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High speed scanning
◎ Lower dosage of enhancement medium
Spiral CT: 20s,60ml Dual-slice CT: 10s,40ml
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High speed scanning
◎ Reduce exam time
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Image quality has been increased greatly
◎ Large rang continuous thin thickness scanning as regular scanning
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◎ Increase the detectable rate of small pathological changes
2mm scanning10mm scanning
Small nodus focus of lungAd
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◎ High quality images of coronal and median MPR
Spiral CT： 5mm MPR
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Dual-slice CT： 1mm MPRAd
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◎ Large range MRA can be acquired perfectly.
Spiral CT: 5mm
Dual-slice CT: 2mm
Adv
anta
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ual-s
lice
CT
sca
nner
◎ 3D image quality has been increase greatly.
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Reduce running cost
◎ prolong use life of X-ray tube
Reduce scanning time
Increase X-ray efficiency
→Reduce exposure time→Reduce tube loading
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CT
-C30
00D
ual
CT
-C30
00D
ual
◎ Large heat capacity metal tube of 4MHU supplied by VARIAN
◎ Special high voltage generator of 28kW supplied by SPELLMAN
◎ Super high speed GOS detectors with 10mm dual-slice
◎ Slip ring and brush assembly with 2000000 times guaranteed
◎ Two images acquired in 1sec./360°
◎ Spiral scanning with continuous 80sec.
◎ Min. Thickness: 1mm
◎ Image reconstruction time:0.8sec.CT
-C30
00D
ual
CT
-C30
00D
ual
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