Glossary Terms  Home

                                                K

Kolmogorov-Smirnov (K-S) test 

A test for statistical significance that evaluates whether two samples are drawn from the same distribution.  The K-S test is sensitive to differences in variability and skew between distributions, but it is much less sensitive to differences in mean than the t-test. 

k-space

A notation scheme used to describe MRI data. The use of k-space provides mathematical and conceptual advantages for describing the acquired MR signal in image form.

k-space trajectory

A path through k-space. Different pulse sequences adopt different k-space trajectories.