Dear Freesurfer experts,

I have noisy four MEMPRAGE images each one has four volumes for the same participant. These T1 images were acquired at the same scanning session. I have two question:

1. Is there any tool in free surfer to average these images.

2. Is the average the images a good idea to reduce noise and improve SNR

3. Do you suggest me any solution that can help to reconstruct these noisy images.

Thank you for any suggestion

John