Operating instructions

30
Scan and Reconstruction
Pitch
The Pitch Factor can be freely adapted from 0.45 – 2.0,
in Cardio, there is a fixed pitch down to 0.1.
With the SOMATOM SensationCardiac you select the
slice collimation together with the slice width desired.
The slice width is independent of pitch, i.e. what you
select is always what you get. Actually, you do not
need to be concerned about the algorithm any more;
the software does it for you.
Pitch values with a step width of 0.05 can be selected
for all modes.
We recommend to use a Pitch Factor of 0.45 for MPR
reconstructions.
Pitch = feed per rotation
z-coverage
z-coverage = detector rows x collimated slice width
Feed/Rotation = table movement per rotation