Tonima Ali

[ISMRM_AusNZ @ISMRM_AusNZ]

🎉 Excited for the 6th Annual ISMRM ANZ Online Meeting! Do you have MRI findings you would like to share with the community? Abstract submissions are now open until November 22. Submit yours here: https://t.co/rM1C8GOble
#ISMRMANZ2024 #MRI #Research

[ISMRM_AusNZ @ISMRM_AusNZ]

📢 Calling all researchers in MRI! Join us online on December 6, 2024, from 12–5pm AEDT for cutting-edge presentations, keynotes, and networking in the field of MRI! Abstracts are due November 22 - submit yours today! #ISMRMANZ2024 #MRI #Research

[Tonima Ali @AliTonima]

@ttpdoan @fercalamante @IKvalsgard The rest of our pipeline is designed to parcellate the nuclei and sub-regions within those masks based on myelination, fibre direction, and diffusion micro-environment. We would be keen to try using MASSP instead to check if that improves our parcellation further🙂

[Tonima Ali @AliTonima]

@ttpdoan @fercalamante @IKvalsgard A direct comparison between these two parcellations is therefore not practical.
We used the segmentation by FSL to define the masks for subcortical structures in each subject and then defined the masks in template space based on commonality (common across 75% of the population).

[Tonima Ali @AliTonima]

@ttpdoan @fercalamante @IKvalsgard However, the scope and objective of our recent work and SydSGM parcellation is somewhat different, as that aims to parcellate the nuclei and sub-regions within the already defined “full” subcortical structures (caudate, putamen, globus pallidus, nucleus accumbens, and thalamus).

[Tonima Ali @AliTonima]

@ttpdoan @fercalamante @IKvalsgard Thanks @ttpdoan for sharing your work here. I thoroughly enjoyed reading it, thanks again. MASSP offers valuable resources for segmenting subcortical structures, especially in defining the ones that are not typically delineated in existing open-source MRI atlases.

[Fernando Calamante @fercalamante]

SydSGM allows exploration and modelling of multiple cortical circuits that involve different parts of SGM structures. Work led by @AliTonima. Parcellation here (https://t.co/eceYC26C1L). @JingleiLv @SteveKassem ArkievD'Souza @C__OCallaghan MarshallDalton

[Fernando Calamante @fercalamante]

We applied it to Parkinson's disease (using structural connectivity and NBS), and show the extra information it adds to detect network abnormalities when compared with the more standard parcellation.

[Fernando Calamante @fercalamante]

It showed remarkable concordance with histology based atlas delineations.

[Fernando Calamante @fercalamante]

Sydney Subcortical Gray Matter (SydSGM) #parcellation: data driven (T1, T2 and diffusion MRI) in vivo parcellation of human subcortex. Preprint: https://t.co/oIdeBvN3G3

[Tonima Ali @AliTonima]

https://t.co/qCr3kcBF65

[Tonima Ali @AliTonima]

Our recent work is now linked to the MRM Highlights Discourse site:

https://t.co/ZNuAwUZyn0

Drop by for a quick chat!
@JingleiLv @fercalamante

[Tonima Ali @AliTonima]

This article
-demonstrated gradual changes in microarchitecture across cortical depth using quantitative MRI metrics
-showed reliable and reproducible correlations among the cortical microarchitectural properties and fibre distributional patterns in proximal WM structures