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

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Presentation on theme: "Computed Tomography. CT-C2000 CT-C3000 CT-C3000Dual Proviz 8 Multi-slice CT Scanner 1998 2002 1999 2000 Whole body CT scanner Spiral CT Scanner Dual-slice."— Presentation transcript:

1 Computed Tomography

2 CT-C2000 CT-C3000 CT-C3000Dual Proviz 8 Multi-slice CT Scanner Whole body CT scanner Spiral CT Scanner Dual-slice CT Scanner 2003

3 CT-C3000

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

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

6 = Volume Scanning Spiral Scanning = Volume Scanning Spiral 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 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 Scanning +

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

10 ◎ Increase outpatient Advantage of Spiral Scanning

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

12 Nodular pathologic changes can be displayed clearly. ◎ Thin slice scanning of large range 10mm scanning3mm scanning Advantage of Spiral Scanning

13 MPR 3D Advantage of Spiral Scanning

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

15 360°/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 High Speed Advantage of CT-C3000

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

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

18 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. Advantage of CT-C3000

19 Advantage of Metal Tube Advantage of CT-C3000

20 ◎ 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 tube Advantage of CT-C3000

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

22 Dual focus technique Advantage of CT-C3000

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

24 ◎ 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. Heel effect of focus Advantage of CT-C3000

25 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. High voltage generator Advantage of CT-C3000

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

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

28 ◎ Images acquired from high-speed and long-time spiral scanning are much better than that of other materials. 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

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

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

31 ◎ 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 Computer system

32 Rich functions of image processing

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

34 ◎ 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

35 After Before( 5mm) Magic of software

36 MAC Magic of software

37 Lung enhancement Magic of software

38 Inner ear Magic of software

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

40 MPR

41 MPR

42 CMPR

43 MIP

44 SSD

45 VE VR

46 Friendly operating interfaces Human-friendly Design

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

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

49 CT-C3000Dual

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

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

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

53 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 Advantage of Dual-slice CT scanner

54 High speed scanning ArteryPortal vein phase Advantage of Dual-slice CT scanner

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

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

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

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

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

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

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

64 CT-C3000Dual ◎ 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

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


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