[Freesurfer] TR,TE,TI,FA variability w/ mri_ca_train

2013-08-01 Thread Mark Plantz
Hello freesurfers, I currently have a series of images with various TR,TE,TI,FA values. I would like to use mri_ca_train to create a .gca atlas based on these segmented volumes. Unfortunately, they all have slightly different control parameters (TR,TE,TI,FA). Is there any way around this probl

Re: [Freesurfer] TR,TE,TI,FA variability w/ mri_ca_train

2013-08-01 Thread Bruce Fischl
Hi Mark the formatting got messed up so I can't parse your table. You can get around this using mri_modify, and just setting everything to 0. As for the effects, look at the images and see what you think. cheers Bruce On Thu, 1 Aug 2013, Mark Plantz wrote: Hello freesurfers,     I curren

Re: [Freesurfer] TR,TE,TI,FA variability w/ mri_ca_train

2013-08-05 Thread Mark Plantz
For some reason, when I run that command, I get the following output: Input volume is : seg_mov Output volume is : seg_mov_2 There are no errors, but when I check "mri_info" of the output file, the TR, TE, etc. values are still non-zero. Any ideas what could cause that to happen? Thanks! MP

Re: [Freesurfer] TR,TE,TI,FA variability w/ mri_ca_train

2013-08-05 Thread Bruce Fischl
can you send us the full command line and screen output of what you ran? On Mon, 5 Aug 2013, Mark Plantz wrote: For some reason, when I run that command, I get the following output: Input volume  is : seg_mov Output volume is : seg_mov_2 There are no errors, but when I check "mri_info" of the

Re: [Freesurfer] TR,TE,TI,FA variability w/ mri_ca_train

2013-08-05 Thread Mark Plantz
Command and output: dhcp-165-124-23-213:Desktop IngvalsonLab$ mri_modify -tr 0 -te 0 -ti 0 -fa 0 seg.mgz seg_new.mgz Input volume is : seg.mgz Output volume is : seg_new.mgz dhcp-165-124-23-213:Desktop IngvalsonLab$ Then, I checked the mri_info for each of the files (input and output) - *in

Re: [Freesurfer] TR,TE,TI,FA variability w/ mri_ca_train

2013-08-05 Thread Bruce Fischl
Oh, I see. It checks against zero to see if things are specified. I'll fix that, but in the meantime why don't yo uset everything to 1 instead of 0 On Mon, 5 Aug 2013, Mark Plantz wrote: Command and output: dhcp-165-124-23-213:Desktop IngvalsonLab$ mri_modify -tr 0 -te 0 -ti 0 -fa 0 seg.mgz