1. Computed Tomography

2. Proviz 8
Multi-slice CT Scanner
2003
CT-C3000Dual
Dual-slice CT Scanner
CT-C3000
2002
1999
2000
Spiral CT Scanner
CT-C2000
1998
Whole body CT scanner

3. CT-C3000

4. Reconstruction and post-processing
CT Working Principle
Image display
X-ray generation
Data acquisition
Reconstruction and post-processing

5. Conventional Scanning
Scanning Interval
Scanning Interval
◎ Scanning speed is restricted because of non-continuous scanning.

6. Spiral Scanning
Spiral Scanning = Volume Scanning

7. Working 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

8. Advantage of Spiral Scanning
More easy to patient exam
Increase outpatient
Scanning speed is increased greatly
Reduce motion artifacts
Lower dosage of enhancement medium
Reduce mechanical faults +
Reduce the missed diagnosis
Image post-processing making 3D visualization into reality
Volume scanning

9. Advantage of Spiral Scanning
◎ More easy to patient exam
Advantage of Spiral Scanning
Breath motion
Successful holding breath
Reduce breath and motion artifacts

10. Advantage of Spiral Scanning
◎ Increase outpatient
Advantage of Spiral Scanning

11. Advantage of Spiral Scanning
◎ Lower usage of enhancement medium
Advantage of Spiral Scanning
Artery phase
Portal vein phase
To acquire different phases images of viscera

12. Advantage of Spiral Scanning
◎ Thin slice scanning of large range
Advantage of Spiral Scanning
10mm scanning
3mm scanning
Nodular pathologic changes can be displayed clearly.

13. Advantage of Spiral Scanning
MPR 3D

14. Advantage of CT-C3000 ◎ High speed ◎ Thin slice
◎ Strong capability of spiral scanning
◎ High quality images
◎ Rich functions of image processing

15. Advantage of CT-C3000 High Speed 360°/sec. Clinical application：
◎ Volume scanning of ROI can be achieved with holding breath one time
◎ Reduce the missed diagnosis rate of small focus without interval data acquisition
◎ Reduce breath and motion artifacts
◎ Easy to acquire enhancement image
Advantage of CT-C3000

16. Advantage of CT-C3000 Thickness of 1mm Thin slice
Clinical Application：
Advantage of CT-C3000
◎ Increase diagnosis rate of small focus
◎ reconstruction with high resolution
◎ The base of 2D and 3D reconstruction

17. Top-grade configuration of CT-C3000
Strong capability of spiral scanning
Continuous scanning of 80sec.
Basis
Advantage of CT-C3000
Top-grade configuration of CT-C3000
Key parts are imported from world leading manufactures.

18. Advantage of CT-C3000 X-ray Tube Made by VARIAN Co. of U.S.A.
Metal tube
Dual focus
Advantage of CT-C3000
◎ Special designed for spiral CT of 1 and sub-second CT scanner
◎ Large heat storage capacity：3.5MHU
◎ High heat dispassion：750KHU／min.

19. Advantage of Metal Tube
Advantage of CT-C3000

20. Advantage of metal tube
◎ 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 CT-C3000

21. Advantage of metal tube
Advantage of CT-C3000
Large range continuous scanning can be achieved with 175mA and 80s.

22. Dual focus technique
Advantage of CT-C3000

23. Contrast the large focus with the small one
Advantage of CT-C3000
Small focus

24. Heel effect of focus Advantage of CT-C3000
◎ Focus of electron beam on the anode target is the same with heel on the floor.
◎ Sand blast will appear on anode target because of small focus.
◎ Image quality will be effected.
Advantage of CT-C3000

25. Apply high voltage and phase controlling technology
High voltage generator
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 accurately.
Advantage of CT-C3000

26. Guarantee of high quality image
Advantage of CT-C3000
More……
Super high speed GOS detector
Slip ring and brush assembly made of silver plated copper
Strong computer system
Advanced system design

27. Guarantee of high quality image
Detector
◎ Made by Hamamatsu Co. of Japan
◎ Super high speed GOS solid detector
◎ Channel number：688
Advantage of CT-C3000

28. Super high speed GOS detector
◎ Stand for the most leading level of the world
◎ X-ray absorptivity:99.98%
◎ Response speed: 40% higher than that of other materials
◎ Extra-short afterglow effect
Advantage of CT-C3000
◎ Images acquired from high-speed and long-time spiral scanning are much better than that of other materials.

29. Guarantee of high quality image
Slip ring and brush assembly
Made by Litton Co.
Silver plated copper
Advantage of CT-C3000
◎ Signals are transmitted accurately in real time.
◎ High stability and wearability
◎ times is guaranteed by Litton Co..
◎ Low cost maintenance

30. Guarantee of high quality image
Strong 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 maintenance
Advantage of CT-C3000
1sec.
images

31. Computer system Advantage of CT-C3000 ◎ 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
Advantage of CT-C3000

32. Software is the kernal of CT scanner
Rich functions of image processing
Software is the kernal of CT scanner

33. Rich functions of image processing
◎ Strong development capability of our company
◎ Multi-arithmetic application
◎ Comprehensive image post-processing
◎ High quality images

34. Magic of software ◎ BHC technology ◎ VAC technology ◎ MAC technology
◎ Adaptive steak artifacts reduction software
◎ High resolution scanning technology
◎ MAR software
◎ Lung enhancement software
◎ Advanced noise reduction software

35. Magic of software
Before( 5mm)
After

36. Magic of software
MAC

37. Magic of software
Lung enhancement

38. Magic of software
Inner ear

39. 3D Technology Magic of software ◎ MPR ◎ CMPR ◎ SSD ◎ VR ◎ VE
◎ MIP/MINP
◎ CTA
Magic of software

40. Magic of software
MPR

41. Magic of software
MPR

42. Magic of software
CMPR

43. Magic of software
MIP

44. Magic of software
SSD

45. Magic of software VR VE

46. Human-friendly Design
Friendly operating interfaces

47. Human-friendly Design
Clear operation steps
◎ Presetting protocols
◎ Scanning can be completed automatically.
Human-friendly Design

48. Human-friendly Design
Comfortable
◎ 70cm gantry aperture
◎ 25°gantry tilt
◎ Load capacity of couch is 200Kg
◎ Clear voice prompt
Equipped with remote controlling
Human-friendly Design

49. CT-C3000Dual

50. Scanning speed doubled
Advantage of Dual-slice CT scanner
2 images can be acquired in 360°/Sec.

51. Advantage of Dual-slice CT scanner
High speed scanning
◎ Easy to patient exam, reduce breath and motion artifacts
Advantage of Dual-slice CT scanner

52. Advantage of Dual-slice CT scanner
Breath artifacts
Advantage of Dual-slice CT scanner
Successful holding breath

53. Advantage of Dual-slice CT scanner
High speed scanning
◎ Multi-organ multi-phase images acquired accurately
20 cm
Advantage of Dual-slice CT scanner
Three phase scanning of liver
Scanning range：20cm
Slice thickness：10mm
Dual-slice spiral scanning
Artery phase ：10seconds
Spiral CT scanner
Artery phase：20seconds
Best continuous enhancement: about 10seconds

54. Advantage of Dual-slice CT scanner
High speed scanning
Advantage of Dual-slice CT scanner
Artery
Portal vein phase

55. Advantage of Dual-slice CT scanner
High speed scanning
◎ Lower dosage of enhancement medium
Advantage of Dual-slice CT scanner
Dual-slice CT: 10s,40ml
Spiral CT: 20s,60ml

56. Advantage of Dual-slice CT scanner
High speed scanning
◎ Reduce exam time
Advantage of Dual-slice CT scanner

57. Image quality has been increased greatly
◎ Large rang continuous thin thickness scanning as regular scanning
Advantage of Dual-slice CT scanner

58. Advantage of Dual-slice CT scanner
◎ Increase the detectable rate of small pathological changes
Advantage of Dual-slice CT scanner
10mm scanning
2mm scanning
Small nodus focus of lung

59. Advantage of Dual-slice CT scanner
◎ High quality images of coronal and median MPR
Advantage of Dual-slice CT scanner
Spiral CT：5mm MPR

60. Advantage of Dual-slice CT scanner
Dual-slice CT：1mm MPR

61. Advantage of Dual-slice CT scanner
◎ Large range MRA can be acquired perfectly.
Advantage of Dual-slice CT scanner
Spiral CT: 5mm
Dual-slice CT: 2mm

62. Advantage of Dual-slice CT scanner
◎ 3D image quality has been increase greatly.
Advantage of Dual-slice CT scanner

63. Advantage of Dual-slice CT scanner
Reduce running cost
Reduce scanning time
Increase X-ray efficiency
→Reduce exposure time→Reduce tube loading
Advantage of Dual-slice CT scanner
◎ prolong use life of X-ray tube

64. ◎ 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 times guaranteed
CT-C3000Dual

65. CT-C3000Dual ◎ Two images acquired in 1sec./360°
◎ Spiral scanning with continuous 80sec.
◎ Min. Thickness: 1mm
◎ Image reconstruction time:0.8sec.
CT-C3000Dual