I was wondering how is your experience with
mrdegibbs in partial Fourier data.
In original paper https://www.ncbi.nlm.nih.gov/pubmed/26745823 they use partial Fourier 6/8 to demonstrate that degibbs in this type of acquisition produces spurious ringing after correction.
I have also 6/8 partial Fourier data (AP phase encoding direction) and actually
mrdegibbs seems to me to work very well. The ringing is removed very well and I do not see any new spurious ringing in AP direction after correction. See mean diffusivity data after denoising, before
mrdegibbsthe big ringing at cursor position is effectively removed:
Actually, I do not know what they mean by new ringing after correction with partial Fourier data showed in fig. 6 in the original paper. I see in the figure some hypointensities around ventricles in the partial Fourier data, but they seem to be present also in their original data before correction. I see similar hypointensities around ventricles in my data (see cursor), but they are present also in the data before
mrdegibbs, so it is no new ringing.
Could you please comment on?
Secondly, do you think that it is possible to implement
mrdegibbs to perform unringing only in the direction with full k-space coverage (in my case LR)?
Thank you in advance,