multimodal atlas construction

[rosella1234]

Hi,
I need to create a multimodal population-specific atlas from T1 and T2 images of a neonatal cohort, resulting in a T1 and a T2 templates.
The command I use is:

antsMultivariateTemplateConstruction2.sh -d 3 -i 3 -k 2 -f 4x2x1 -s 2x1x0vox -q 30x20x4 -t SyN -z t1.nii.gz -z t2.nii.gz -m CC -c 0 -o MY templateInput.csv

where templateInput.csv contains

3dT1_subject1.nii.gz,3dT2_subject1.nii.gz
.
.
.
3dT1_subjectN.nii.gz,3dT2_subjectN.nii.gz

I was wondering what input to use for -z option having no initial templates to start with , but just the single subjects' images.
Please find attached an exemplary T1 and T2 image from a subject.
thank you in advance!

[ntustison]

The -z flag is option. So if you don't have an initial template, don't include it.