External Email - Use Caution        

Hi Doug and Matt,

I'm pretty confident my $SUBJECTS_DIR is correct, its the same one I used for 
recon-all on this subject and the files seem to be in the right place; wee 
below:

[mtisdall@ftdc-gpu01 126346]$ echo $SUBJECTS_DIR
/home/mtisdall/Research/7TAnalysis/subjects

[mtisdall@ftdc-gpu01 126346]$ ls $SUBJECTS_DIR/126346
label  mri  scripts  stats  surf  tmp  touch  trash


I don't see a blank subject line in the lta file. I tried to make the initial 
transform manually in Freeview by just loading the two volumes, using 
`Transform Volume` until they were close, and then saving the resulting 
transform. I then re-loaded my 7T data, using the option in FreeView to apply 
the transform on load, and it looks right. See the file contents below:

[mtisdall@scisub 126346]$ cat 7Tto3Tinit.lta
type      = 1 # LINEAR_RAS_TO_RAS
nxforms   = 1
mean      = 0.0000 0.0000 0.0000
sigma     = 1.0000
1 4 4
9.961947798728943e-01 8.715574443340302e-02 4.656613983300417e-10 
-1.702789425849915e+00
-8.682409673929214e-02 9.924039244651794e-01 -8.715574443340302e-02 
-7.269048690795898e+00
-7.596124429255724e-03 8.682409673929214e-02 9.961947798728943e-01 
1.319813346862793e+01
0.000000000000000e+00 0.000000000000000e+00 0.000000000000000e+00 
1.000000000000000e+00
src volume info
valid = 1  # volume info valid
filename = /home/mtisdall/Research/7TAnalysis/126346/niis/3T_MPRAGE.nii
volume = 208 240 256
voxelsize = 1.000000000000000e+00 1.000000000000000e+00 1.000000000000000e+00
xras   = 1.000000000000000e+00 0.000000000000000e+00 0.000000000000000e+00
yras   = 0.000000000000000e+00 1.000000000000000e+00 0.000000000000000e+00
zras   = 0.000000000000000e+00 0.000000000000000e+00 1.000000000000000e+00
cras   = 5.000000000000000e-01 1.455932617187500e+01 -1.323728942871094e+01
dst volume info
valid = 1  # volume info valid
filename = /home/mtisdall/Research/7TAnalysis/126346/niis/3T_MPRAGE.nii
volume = 208 240 256
voxelsize = 1.000000000000000e+00 1.000000000000000e+00 1.000000000000000e+00
xras   = 1.000000000000000e+00 0.000000000000000e+00 0.000000000000000e+00
yras   = 0.000000000000000e+00 1.000000000000000e+00 0.000000000000000e+00
zras   = 0.000000000000000e+00 0.000000000000000e+00 1.000000000000000e+00
cras   = 5.000000000000000e-01 1.455932617187500e+01 -1.323728942871094e+01
fscale 0.100000


Note that, when I move the --s flag to the end of the command line, it runs 
slightly further, but ultimately fails searching for `subject-unknown` within 
my subjects directory:

[mtisdall@scisub 126346]$ bbregister --mov mgz/7T_MEMPRAGE.mgz --init-reg 
7Tto3Tinit.lta --reg 7Tto3T.lta --o 7TMEMPRAGE_warped.mgz --t1 --s 126346
...
Loading mov
error: 
mghRead(/home/mtisdall/Research/7TAnalysis/subjects/subject-unknown/mri/orig.mgz,
 -1): could not open file


Any other suggestions on what I'm doing wrong here?


Thanks again,
Dylan



> Date: Mon, 21 Feb 2022 16:58:22 -0500
> From: "Douglas N. Greve" <dgr...@mgh.harvard.edu>
> Subject: Re: [Freesurfer] Subject ID error with bbregister
> To: freesurfer@nmr.mgh.harvard.edu
> Message-ID: <6f0565c8-c4f3-8289-d41b-0558a1fb6...@mgh.harvard.edu>
> Content-Type: text/plain; charset=UTF-8; format=flowed
> 
> Is there a blank subject line in the lta file? If so, it is probably 
> trying to get the subject from there. You can try putting the --s after 
> the --lta
> 
> On 2/21/2022 3:43 PM, Tisdall, Dylan wrote:
>>         External Email - Use Caution
>> 
>> Hi all,
>> 
>> Quick question on a puzzling error with bbregister version 7.1.1. When I run:
>> 
>> bbregister --s 126346 --mov mgz/7T_MEMPRAGE --init-reg 7Tto3Tinit.lta --reg 
>> 7Tto3T.lta --o 7TMEMPRAGE_warped.mgz --t1
>> 
>> I get the error:
>> 
>> ERROR: must spec a subject id
>> 
>> which I thought I'd done with the --s flag. What am I missing?
>> 
>> Even more odd, if I just move the to the end of the command, bbregister will 
>> run, but eventually fails with:
>> 
>> error: 
>> mghRead(/hom/mtisdall/Research/7TAnalysis/subject//subject-unknown/mri/orig.mgz,
>>  -1): could not open file
>> 
>> Is there something obvious I'm doing wrong with these two command lines that 
>> cause these behaviors?
>> 
>> 
>> Thanks,
>> Dylan
>> 
>> 
>> 
>> 
>> 
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