Computed Tomography

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

CT-C3000

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

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

Spiral Scanning Spiral Scanning = Volume Scanning

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

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

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

Advantage of Spiral Scanning ◎ Increase outpatient Advantage of Spiral Scanning

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

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.

Advantage of Spiral Scanning MPR 3D

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

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

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

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.

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.

Advantage of Metal Tube Advantage of CT-C3000

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

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

Dual focus technique Advantage of CT-C3000

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

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

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

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

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

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.

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 ◎ 2000000 times is guaranteed by Litton Co.. ◎ Low cost maintenance

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. 120000 images

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

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

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

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

Magic of software Before( 5mm) After

Magic of software MAC

Magic of software Lung enhancement

Magic of software Inner ear

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

Magic of software MPR

Magic of software MPR

Magic of software CMPR

Magic of software MIP

Magic of software SSD

Magic of software VR VE

Human-friendly Design Friendly operating interfaces

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

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

CT-C3000Dual

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

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

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

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

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

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

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

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

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

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

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

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

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

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

◎ 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 CT-C3000Dual

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