Osprey MEGAPRESS Robust Spectral Registration Error

MRS Software Osprey
1

When running a large MEGAPRESS dataset through Osprey using default Robust Spectral Registration, one subject had spectral registration issues apparent via very sparse but flat chemical shift drift plots (for both experiments A and B. and the difference spectra) but all other aspects of preprocessing appear correct. Fitting also appeared normal. Using ProbSpecReg appeared to correct the issue (for both experiments A and B and the difference spectra, chem shift drift plots no longer looks sparse). We aren’t sure why the error in RobSpecReg occurred for this one subject.

2

Hi @leahdirubio,

Could you please show the OspreyLoad and OspreyProcess output for that subject’s data?

Mark