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There is software publicly available that will correct effects of cardiac motion and signal loss due to movement during the slice in the post-processing pipeline. See: https://science.nichd.nih.gov/confluence/display/nihpd/TORTOISE Stefano Marenco -----Original Message----- From: Michel Thiebaut de Schotten [mailto:[log in to unmask]] Sent: Friday, December 09, 2011 10:34 AM To: [log in to unmask] Subject: Re: [FSL] DTI cardiac gating Dear Estephan, We use Cardiac gating to only collect acquisitions between heart beats. This useful because the brain also pulse and this may induce artefacts (eg partial volume effect) when you combined all your diffusion weighted images together to compute your tensor model. The processing of cardiac gated datasets is the same as usual, no change, except that your data should be slightly better. Best Michel Sent from my iPad On Dec 9, 2011, at 4:15 PM, Estephan Moana <[log in to unmask]> wrote: > For DTI data collected with cardiac gating (varying effective TR), is there any addition and/or modifications to the processing steps described here: http://www.fmrib.ox.ac.uk/fsl/fdt/fdt_pipeline.html? > > Thank you. > > Estephan Moana, D.D.S., M.S. > Oral Biology PhD Program - Neurobiology track > Center for Neurosensory Disorders > School of Dentistry, UNC- Chapel Hill