Run the algorithm when the slice order is unknown

[daviddmc]

Hi, thanks for sharing the code. I wonder if it is possible to use the algorithm when the slice order is unknown, i.e., svr.ParZ.SlOr is unknown. I tried to set svr.ParZ.SlOr to an empty array, but got the following error: Inappropriate slice order identified, SKIPPING. Is there a solution to this problem?

[lcorgra]

Hi Junshen, that's a good point. Would recommend setting

for v=1:NV
svr.slOrd{v}=([1:4:NY(v,3) 3:4:NY(v,3) 2:4:NY(v,3) 4:4:NY(v,3)])';
end

with NV the number of stacks and NY(v,3) the number of slices of stack v. This is 2x temporal subdivision of stack acquisition with 2 levels, so kind of natural choice for distributed coverage of slice axis in the absence of other information. Have checked that it is suboptimal when compared to real order of slices, but for certain orderings may provide acceptable results.

Hope it helps, any other question, don't hesitate to raise.

[daviddmc]

Thanks for answering. Will try this setting.