No, there is not an easy way to break it up that way. If you know some programming, you could merge all 3 into one seg, then compute the PCA of the coordinates, then divide it up along the largest direction
On 9/9/2024 1:54 AM, Necati Emre Şahin wrote:
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Dear FreeSurfer Developers, I hope this message finds you well.
I am currently working with FreeSurfer 7.4.1 and I have encountered a situation that I would like your guidance on. Specifically, I have noticed that FreeSurfer outputs the lateral ventricle in two parts for sides, namely "Left-Lateral-Ventricle" and "Left-Inf-Lat-Vent" for left. However, from an anatomical perspective, I am interested in obtaining the results for the four parts of the lateral ventricle separately: the anterior horn, central part, posterior horn, and inferior horn.
I understand that the "Left-Inf-Lat-Vent" might correspond to the inferior horn. Is FreeSurfer capable of providing the segmentation for the lateral ventricle in these specific sub-regions? If not, could you recommend any method or workaround that would allow me to obtain these detailed segmentations?
Additionally, if it is not possible to directly obtain these sub-regional volumes, is there a way to derive the ventricle volumes within each lobe (e.g., frontal, parietal, occipital, temporal) using FreeSurfer or any other tool?
Your assistance in this matter would be greatly appreciated. Thank you for your time and support.
Best regards,
Necati Emre Sahin.
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