1. MULTISLICE CT

3. Neusoft ProVis 8 Product details Extremely easy to operate
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

6. CT EVOLUTION

7. 1998 MULTISLICE CT SCANNERS INTRODUCED AT RSNA MEETING

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

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.

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