urfer support list
*Subject:* Re: [Freesurfer] MRI image quality metrics
Hi,
The following is taken from *MailScanner has detected
a possible fraud attempt from "secure-web.cisco.com"
claiming
sity.Best,AvnishFrom: freesurfer-boun...@nmr.mgh.harvard.edu <freesurfer-boun...@nmr.mgh.harvard.edu>
on behalf of Huang, Yujing <yhuan...@mgh.harvard.edu>Sent: Tuesday,
February 7, 2023 9:09 AMTo: Freesurfer support list
<freesurfer@nmr.mgh.harvard.edu>Subject: Re: [Frees
For SNR, you'll have to calculate them as:
>>>> 1.
>>>>
>>>> Run the recon-all pipeline to process your MRI data.
>>>> 2.
>>>>
>>>> Use the mri_binarize tool to create a binary mask of the R
>>> Use the mri_segstats tool to calculate the mean and standard
>>> deviation of the intensity values within the ROI.
>>> 4.
>>>
>>> Then your SNR = mean_intensity/std_of_intensity.
>>>
>>>
>>> Best,
>>
t;
>> Then your SNR = mean_intensity/std_of_intensity.
>>
>>
>> Best,
>>
>> Avnish
>> --
>> *From:* freesurfer-boun...@nmr.mgh.harvard.edu <
>> freesurfer-boun...@nmr.mgh.harvard.edu> on behalf of Huang, Y
t,
>
> Avnish
> --
> *From:* freesurfer-boun...@nmr.mgh.harvard.edu <
> freesurfer-boun...@nmr.mgh.harvard.edu> on behalf of Huang, Yujing <
> yhuan...@mgh.harvard.edu>
> *Sent:* Tuesday, February 7, 2023 9:09 AM
> *To:* Freesurfer s
vnish
From: freesurfer-boun...@nmr.mgh.harvard.edu
on behalf of Huang, Yujing
Sent: Tuesday, February 7, 2023 9:09 AM
To: Freesurfer support list
Subject: Re: [Freesurfer] MRI image quality metrics
Hi,
The following is taken from
https://github.com/ComaRecoveryLab/Lesion_Correctio
Hemisphere CNR + Right Hemisphere CNR) x 2
“
Best,
Yujing
From: freesurfer-boun...@nmr.mgh.harvard.edu
On Behalf Of MANSON ERIC NAAB
Sent: Tuesday, February 7, 2023 5:26 AM
To: Freesurfer support list
Subject: [Freesurfer] MRI image quality metrics
External Email - Use Caution
Dear
External Email - Use Caution
Dear FreeSurfer experts,
Please, I need your assistance and guidance on calculating the
contrast-to-noise ratio (CNR) and signal-to-noise-ratio (SNR) of White
matter, Gray matter, and CSF of the brain after recon-all.
Thank you
