TBSS (Tract Based Spatial Statistics) analysis

Brain's anatomical connectivity (white matter) information is collected using Diffusion Tensor Imaging (DTI) technology. The analysis of DTI data was performed using Tract Based Spatial Statistics (TBSS). The scripts with template name dti_[1-9]_xxxxxxx.sh are used for DTI data analysis. The analysis process requires 9 steps to be carried out. The tbss_analysis folder contains nine such scripts. To carry out the processing you need to execute them sequentially as shown below. Your first input would be 4d NIFTI file.

How to perform TBSS analysis?

Execute the shell file by prefixing it with ./ These scripts are supposed to be run sequentially. The workflow should be something like this.

Usage

You will have to run the scripts sequentially as shown below, once the prior processing script finishes.

./dti_1_fslroi.sh

./dti_2_bet.sh

./dti_3_ecc.sh

./dti_4_fslmaths.sh

./dti_5_dtifit.sh

./dti_6_organize.sh

./dti_7_group_sort.sh

./dti_8_tbss.sh

./dti_9_visualize.sh

Notes

• Kindly make sure that shell scripts are executable, you may need to provide execution permission to these shell scripts which can be done using chmod +x filename.sh command
• These scripts require the prior processing steps to be completed so nature of analysis is sequential.
• For more information kindly read inline documentation of the scripts.