Progress update from the hippocampal subfields group

Alzheimers Dement (Amst). 2019 Jun 13:11:439-449. doi: 10.1016/j.dadm.2019.04.001. eCollection 2019 Dec.

Abstract

Introduction: Heterogeneity of segmentation protocols for medial temporal lobe regions and hippocampal subfields on in vivo magnetic resonance imaging hinders the ability to integrate findings across studies. We aim to develop a harmonized protocol based on expert consensus and histological evidence.

Methods: Our international working group, funded by the EU Joint Programme-Neurodegenerative Disease Research (JPND), is working toward the production of a reliable, validated, harmonized protocol for segmentation of medial temporal lobe regions. The working group uses a novel postmortem data set and online consensus procedures to ensure validity and facilitate adoption.

Results: This progress report describes the initial results and milestones that we have achieved to date, including the development of a draft protocol and results from the initial reliability tests and consensus procedures.

Discussion: A harmonized protocol will enable the standardization of segmentation methods across laboratories interested in medial temporal lobe research worldwide.

Keywords: Cytoarchitecture; Hippocampus; Histology; Human; Neuroanatomy; Neuroimaging; Structural imaging; Volumetry; ex vivo.