Slice Timing For Bold Sequences And Other Bold Questions - Siemens Prisma 3T User Manual

Slice Timing for BOLD Sequences and other BOLD Questions

1. When EPI slice are collected in a mosaic/volume, are they interleaved or sequential?
 Interleaved (that is the default)
2. When collected interleaved, are all the odd numbered slices collected first?
 It depends on the number of slices in the group
 If there are an even # of slices then even numbered slices are collected first
 If there are an odd # of slices then odd numbered slices are collected first
3. Is slice #1 always at the "lowest" part of the brain and the last slice at the top?
 The default "image numbering" in the transversal/axial plane is F>H - so the
bottom slice is acquired first
4. In regards to the timing of slices, is the scanner set to collect slices in an equidistant
fashion within the TR time or as fast as possible?
 Within the TR time
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Revision Date: 3/13/2019