Multi-slice cardiac CT

• Top of the range four-slice scanners have ~0.4 s scan times

  • 0.4 multi-slice  0.25 s half scan

• Z-axis resolution improved over single slice scanners

  • 16 x 0.5 or 1 mm collimation possible

• Start of acquisition can be triggered by EKG waveform, to capture heart during phase of least movement