Slice Thickness

The Slice Thickness parameter determines the through plane spatial resolution. For spectroscopy, Slice Thickness becomes Voxel Thickness. In general, the thinner the slice, the better the resolution, and the lower the SNR.

Select a Slice Thickness value to specify the thickness of the slices being prescribed.

• Typically use thin slices of 3 to 4 mm for small structures such as the pituitary, inner ear, spine, and vessels.
• Use thicker slices for studies of the abdomen, pelvis, and heart.
• Decrease the slice thickness and the SNR decreases and the spatial resolution increases.
• The thicker the slice, the more partial voluming occurs and certain structures may be hidden by overlying tissue.
• Slice thickness range in millimeters:
  • 2D – 0.6 to 20 mm in 0.1 mm increments
  • 3D – 0.1 mm to 5.0 mm in 0.1 mm increments
  • 2D PC slabs – 3 to 99 mm