Jason K. Mendes1, Dennis L. Parker1
1UCAIR,
Correlations
between adjacent K-Space lines can be used to detect non-rigid body motion or
motion that occurs out of plane. The
cross correlation between two adjacent sets of equally spaced K-Space lines
is a set of equally spaced delta functions convolved with an error
function. The error function is a
result of correlation errors between adjacent sets of lines. These errors are present even when there is
no motion of any kind, however, as the amount of data corruption increases
the error function broadens. As a
result, a measure of the relative sharpness of the error function provides a
measure of data corruption.