Dear Matt, I completed all three structural pipelines and performed PALM comparison for myelin maps. However, the result I got was somewhat opposed to expectations (patients with early MS having significantly stronger myelination compared to healthy controls). I wondered that maybe something in our acquisition technique could have caused an error in the calculation (as they are a bit different from the HCP protocol)? I used the following images:
3D MPRAGE (TR = 1900 ms, TE = 2.55 ms, TI = 900 ms, flip angle = 90 , FOV = 240 x 240 mm2 , matrix size = 240 x 240, 176 slices, slice thickness = 1 mm), no fat suppression T2 SPACE (same matrix, FOV, and number of slices as in the T1w, TR=5000ms, TE= 393ms, flip angle = 120, slice thickness = 1mm), no fat suppression Is there anything that would have cause imprecise calculation of myelin maps or is it just how our results are? Thanks a lot!! Lisa _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users
