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Delphi definition of the EADC-ADNI Harmonized Protocol for hippocampal segmentation on magnetic resonance

Lookup NU author(s): Dr Michael FirbankORCiD

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Abstract

Background: This study aimed to have international experts converge on a harmonized definition of whole hippocampus boundaries and segmentation procedures, to define standard operating procedures for magnetic resonance (MR)-based manual hippocampal segmentation.Methods: The panel received a questionnaire regarding whole hippocampus boundaries and segmentation procedures. Quantitative information was supplied to allow evidence-based answers. A recursive and anonymous Delphi procedure was used to achieve convergence. Significance of agreement among panelists was assessed by exact probability on Fisher's and binomial tests.Results: Agreement was significant on the inclusion of alveus/fimbria (P = .021), whole hippocampal tail (P = .013), medial border of the body according to visible morphology (P = .0006), and on this combined set of features (P = .001). This definition captures 100% of hippocampal tissue, 100% of Alzheimer's disease-related atrophy, and demonstrated good reliability on preliminary intrarater (0.98) and inter-rater (0.94) estimates.Discussion: Consensus was achieved among international experts with respect to hippocampal segmentation using MR resulting in a harmonized segmentation protocol. (C) 2015 The Alzheimer's Association. Published by Elsevier Inc. All rights reserved.


Publication metadata

Author(s): Boccardi M, Bocchetta M, Apostolova LG, Barnes J, Bartzokis G, Corbetta G, DeCarli C, DeToledo-Morrell L, Firbank M, Ganzola R, Gerritsen L, Henneman W, Killiany RJ, Malykhin N, Pasqualetti P, Pruessner JC, Redolfi A, Robitaille N, Soininen H, Tolomeo D, Wang L, Watson C, Wolf H, Duvernoy H, Duchesne S, Jack CR, Frisoni GB, EADC-ADNI Working Grp Harmonized P

Publication type: Article

Publication status: Published

Journal: Alzheimer's & Dementia

Year: 2015

Volume: 11

Issue: 2

Pages: 126-138

Print publication date: 01/02/2015

Online publication date: 15/08/2014

ISSN (print): 1552-5260

ISSN (electronic): 1552-5279

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.jalz.2014.02.009

DOI: 10.1016/j.jalz.2014.02.009

PubMed id: 25130658


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Funding

Funder referenceFunder name
Alzheimer's Research UK
Brain Research Trust
NIHR Queen Square Dementia BRU
Wyeth International
10012941Lilly International
IIRG-10-174022Alzheimer's Association, Chicago, US
PSR-SIIRI 547Ministere du Developpement Economique, de l'Innovation et de l'Exportation of Quebec

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