Hi Hai
it really depends on your coil and field strength, and whether either is motion-corrupted. For 3T 32 channel data our somewhat ad hoc opinion is that one is better than two (due to blurring induced by interpolation), but it's really a case-by-case decision.
sorry that there isn't an easier answer Bruce On Mon, 6 Jan 2014, Hai Pan wrote:
Hello, FreeSurfer experts,
We made two T1 scans for each subject at each session, will they be helpful for better recon-all results? Shall I average them and process the averaged T1 image? Let me know please.
Thank you,
Hai