Reader Mail
Mon. 30 Oct.06, 16:25
[Reply (1 of 2) to: 'interleaved slices and mean intensity difference in adjacent slices' started by: 'Reader Mail' on Wed. 4 Oct.06]
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interleaved slices and mean intensity difference in adjacent slices |
With interleaved slice acquisition for example in each TR first the odd slices, and then the even slices are acquired. Differences in signal intensity may occur by changes between these acquisitions (like movement), especially with a long TR. In particular, for fMRI sequences with interleaved slice acquisition a slice time correction is recommended to get accurate measurements.
However, I think "large" signal intensity differences with interleaved slices (except fMRI) are rarely seen with usual sequences and sufficient processing (interpolation) algorithms.
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