NIRStar 14.1 - User Manual
Page 122 of 124
Likewise, the grid can be collapsed into a 9×5 one, by merging pairs of adjacent rows and columns:
Figure 108: a more compact grid with nearest and non-nearest channels.
So the new channels can be incorporated into the method presented here for specifying a channel
layout. But there is a significant caveat. You might have already noticed that the distance between the
source and detector optodes is noticeably larger for the 5 new channels than for the 26 nearest-neighbor
channels we had originally. Since the channel distance is crucial to the calculation of the concentration
changes (Hb/HbO), we recommend that if you want to include multiple source-detector separation
distances in your data analysis, you should also enter the corresponding distances in the Display Setup
tab (see Section 17), as depicted in the figure below:
Figure 109: Specifying individual source-detector-distances.
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