Hi Ritthikrai
the amount of time depends on both how abnormal the anatomy is and how high the CNR of your scan is. If you send us some details about your acquisition we might be able to help optimize it, but otherwise you might be stuck with long running time. You can also use more than 1 thread to shorten thing with the -openmp flag to recon-all, if you have the hardware.
cheers Bruce
On Fri, 12 Jan 2018, Ritthikrai Thaweecharoen wrote:
Dear FreeSurfer Staff,
We have conducted a brain volume study in normal Thai elderly. We found that the process time to analyze the brain of 20% of our subject took over 40 hours. The maximum process time is 99 hours. Eventhough the size of imaging file is around 20 MB and use “recon -all” command to process file.
It would be grateful if you could help to explain tedious process time of FreeSurfer and how to shorten this process time.
Our Machine spec. is as following: • INTEL i5 – 4260U CPU@1.4GHz • RAM 8 MB • Cent OS 6.x
Best Regards
Ritthikrai Thaweecharoen
Data Scientist
Research and Development Department
Tel: 02 755 1919
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