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MULTISLICE CT. Neusoft ProVis 8 Specifications GANTRY Multi-slice 2, 4, 7, 8 Detectors: 8 X 896, solid state Slice Thickness (mm): 0.5, 1, 1.5, 2, 2.5,

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Presentation on theme: "MULTISLICE CT. Neusoft ProVis 8 Specifications GANTRY Multi-slice 2, 4, 7, 8 Detectors: 8 X 896, solid state Slice Thickness (mm): 0.5, 1, 1.5, 2, 2.5,"— Presentation transcript:

1 MULTISLICE CT

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3 Neusoft ProVis 8 Specifications GANTRY Multi-slice 2, 4, 7, 8 Detectors: 8 X 896, solid state Slice Thickness (mm): 0.5, 1, 1.5, 2, 2.5, 3 Gantry Tilt: -30 to +30 degrees XRAY TUBE Heat Storage: 7,500,000 HU Heat Dissipation Rate (HU/min.): 1,386,000 Focal Spot Dim. (mm): 0.8 X 0.9, 1.4 X 1.6 X-RAY GENERATOR kW Output: 60 kW kVp Range: 80 to 140 in 1 kVp step mA Range: 0 to 500 in 1 mA step SPIRAL SCANNING Max Scan Time (sec.): 100 Max Scan Volume (cm): 170 Reconstruction Time Per Image (sec.): 0.5 PATIENT COUCH Horizontal Travel (cm): 173 Scan able Range (cm): 170 Maximum Load Capacity With Accuracy (Kg): 205 OTHER FEATURES Auto mA, Contrast Tracking, Auto Voice, Auto Film, Auto Send, Auto Archive, CTA, CT Fluoro, Cardiac Scoring, Dental package, Perfusion, Bone Mineral Analysis, Cardiac Imaging Product details Extremely easy to operate Excellent low and high contrast resolution 0.5 second multi-slice scan and reconstruction 7.5 MHU X-ray tube with 1.38 MHU per minute heat dissipation rate 60 kW X-ray generator Powerful and user friendly physician workstation Fully compliant DICOM 3.0

4 SINGLE vs MULTI

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6 CT EVOLUTION

7 1998 MULTISLICE CT SCANNERS INTRODUCED AT RSNA MEETING

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9 SINGLE SLICE CT LIMITATIONS SPEED PERFORMANCE 3D,MPR,MIP Z-AXIS RESOLUTION MPR LOW ACCURACY 360 LIA ( IMAGE QUALITY & ARTIFACTS) CT ANGIO LIMITATIONS MORE INTRAVENOUS CONTRAST

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29 SLICE THICKNESS IN SINGLE SLICE CT DETERMINED BY: PITCH PRE-PATIENT COLLIMATION

30 MULTISLICE CT COLLIMATION BEAM FALLS ON THE ENTIRE MULTIROW DETECTOR ARRAY 8 MM WIDE BEAM FALLING ON FOUR DCETECTORS CAN PRODUCE: 4 –2MM SLICES

31 BEAM GEOMETRY SINGLE SLICE SPIRAL MULTISLICE FAN CONE

32 BEAM GEOMETRY AS THE NUMBER OF DETECTORS IN A MULTIROW DETECTOR ARRAY INCREASES THE BEAM BECOMES WIDER TO COVER THE 2D DETECTOr ARRAY. LARGER # OF ROWS IN THE DETECTOR ARRAY WILL RESULT IN A WIDER BEAM IN Z-AXIS DIRECTION ( CONE BEAM)

33 POST DETECTOR COLLIMATION IN MULTISLICE CT THE COLLIMATORS ARE POSITIONED BETWEEN DETECTOR COLUMNS.

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36 IMAGE RECON IN MULTI SLICE CT SPECIAL FAN BEAM RECON ALGORITHMS HAVE BEEN DEVELOPED

37 INSTRUMENTATION

38 DAS ALMOST ALL MULTISLICE CT SCANNERS ARE BASED ON III GENERATION SYSTEM DESIGN ROTATE-ROTATE

39 GENERATOR HIGH FREQUENCY GENERATOR 60 KW OUTPUT.

40 X-RAY TUBE ROTATING ANODE TUBE WITH VERY HIGH HEAT CAPACITY

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