The working groups of HSG
The HSG consists of multiple collaborative working groups dedicated to developing a comprehensive segmentation protocol for the hippocampus and MTL cortex. As a reference point for our proposed rules, we use histological annotations by leading experts on MTL anatomy. The proposed rules also undergo a collective evaluation by the broader community, enabling feedback and iterative refinement, if necessary. Our objective throughout this process is to foster effective communication and active engagement with the wider community. Additionally, we strive to facilitate accessibility to valuable resources that can aid individuals interested in MTL segmentation.
Active working groups
Questionnaire Working Group
Aims to develop and compile data that seeks to better understand current practices in HS segmentation and to assess agreement on the developed segmentation rules.
Communication Working Group
Aims to actively work with reach-out about the efforts of the hippocampal subfields group, bringing both news-related content and pedagogical content for members of the community.
Boundary Working Groups
Aims to develop a protocol for establishing subfield boundaries based on known anatomy. The group consists of several active smaller working groups targeting specific issues.
Head Group
Aims to develop segmentation rules for the inner and outer boundaries of the hippocampal head.
Tail Group
Aims to develop boundary rules for the outer boundaries of the hippocampal tail.
MTL cortex group
Aims to develop boundary rules for the entorhinal, BA35 & BA36, and parahippocampal cortex.
Completed working groups
Acquisition Working Group
Developed and established recommendations for MRI acquisition protocols that are optimal for hippocampal subfield segmentation.
Boundary Working Group: Hippocampal body
Recently we finished the final assessments of the harmonized protocol for the hippocampal body. Below are listed the working groups that were specifically focused on this part of the MTL that have now completed their work.
Body: Ranging Group
Developed and tested specific rules to reliably determine which slices should be considered part of the hippocampal body.
Body: Outer Boundary Group
Develop and tested precise tracing guidelines with respect to the outer boundaries of the hippocampus.
Body: Inner Boundary Group
Developed and tested geometric heuristic rules to identify subfield boundaries in the hippocampal body.