Advantages of more slices/rotation

• The more slices that can be acquired per rotation

  • the longer the volume that can be scanned
  • the higher the resolution possible

• e.g angiogram of entire lower limbs in single helical run

  • with 4-slice system, have to use ?3 mm slice
  • with 16-slice system, can perform high-resolution angiography using 1 mm slice

Courtesy: Siemens

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