Workflow implications

• Scan data throughput from gantry to computer

  • Single slice, 1 sec rot : 2 Mbytes per second
    • (1000 detectors, 1000 samples per rot)
  • Four slice, 0.5 sec rot : 16 Mbytes per second
  • Sixteen slice, 0.5 sec rot : 64 Mbytes per second

• Image production speed

  • 1972: 20 bytes per second
  • 1998: 0.5 Mbytes per second
  • 2002: 16 Mbytes per second

• Image viewing speed?

  • Many hundreds of transaxial images can be produced per examination