Incomplete Hippocampal Inversion (IHI), sometimes called hippocampal malrotation, is an atypical anatomical pattern of the hippocampus found in about 20% of the general population. IHI can be visually assessed on coronal slices of T1 weighted MR images, using a composite score that combines four anatomical criteria. IHI has been associated with several brain disorders (epilepsy, schizophrenia). However, these studies were based on small samples. Furthermore, the factors (genetic or environmental) that contribute to the genesis of IHI are largely unknown. Large-scale studies are thus needed to further understand IHI and their potential relationships to neurological and psychiatric disorders. However, visual evaluation is long and tedious, justifying the need for an automatic method. In this paper, we propose, for the first time, to automatically rate IHI. We proceed by predicting four anatomical criteria, which are then summed up to form the IHI score, providing the advantage of an interpretable score. We provided an extensive experimental investigation of different machine learning methods and training strategies. We performed automatic rating using a variety of deep learning models (”conv5-FC3”, ResNet and ”SECNN”) as well as a ridge regression. We studied the generalization of our models using different cohorts and performed multi-cohort learning. We relied on a large population of 2,008 participants from the IMAGEN study, 993 and 403 participants from the QTIM and QTAB studies as well as 985 subjects from the UKBiobank. We showed that deep learning models outperformed a ridge regression. We demonstrated that the performances of the ”conv5-FC3” network were at least as good as more complex networks while maintaining a low complexity and computation time. We showed that training on a single cohort may lack in variability while training on several cohorts improves generalization (acceptable performances on all tested cohorts including some that are not included in training). The trained models will be made publicly available should the manuscript be accepted.
Deep Learning · MRI · Hippocampus · Machine Learning · Incomplete Hippocampal Inversion
@article{melba:2024:016:hemforth,
title = "Automatic rating of incomplete hippocampal inversions evaluated across multiple cohorts",
author = "Hemforth, Lisa and Couvy-Duchesne, Baptiste and De Matos, Kevin and Brianceau, Camille and Joulot, Matthieu and Banaschewski, Tobias and Bokde, Arun L.W. and Desrivières, Sylvane and Florg, Herta and Grigis, Antoine and Garavan, Hugh and Gowland, Penny and Heinz, Andreas and Brühl, Rüdiger and Martinot, Jean-Luc and Paillère Martinot, Marie-Laure and Artigesn, Eric and Papadopoulos, Dimitri and Lemaitrei, Herve and Pausr, Tomas and Poustka, Luise and Hohmana, Sarah and Holz, Nathalie and Fröhner, Juliane H. and Smolka, Michael N. and Vaidya, Nilakshi and Walter, Henrik and Whelan, Robert and Schumann, Gunter and Büchel, Christian and Poline, JB and Itterman, Bernd and Frouin, Vincent and Martin, Alexandre and Cury, Claire and , IMAGEN study group and Colliot, Olivier",
journal = "Machine Learning for Biomedical Imaging",
volume = "2",
issue = "July 2024 issue",
year = "2024",
pages = "1004--1029",
issn = "2766-905X",
doi = "https://doi.org/10.59275/j.melba.2024-3d4e",
url = "https://melba-journal.org/2024:016"
}
TY - JOUR
AU - Hemforth, Lisa
AU - Couvy-Duchesne, Baptiste
AU - De Matos, Kevin
AU - Brianceau, Camille
AU - Joulot, Matthieu
AU - Banaschewski, Tobias
AU - Bokde, Arun L.W.
AU - Desrivières, Sylvane
AU - Florg, Herta
AU - Grigis, Antoine
AU - Garavan, Hugh
AU - Gowland, Penny
AU - Heinz, Andreas
AU - Brühl, Rüdiger
AU - Martinot, Jean-Luc
AU - Paillère Martinot, Marie-Laure
AU - Artigesn, Eric
AU - Papadopoulos, Dimitri
AU - Lemaitrei, Herve
AU - Pausr, Tomas
AU - Poustka, Luise
AU - Hohmana, Sarah
AU - Holz, Nathalie
AU - Fröhner, Juliane H.
AU - Smolka, Michael N.
AU - Vaidya, Nilakshi
AU - Walter, Henrik
AU - Whelan, Robert
AU - Schumann, Gunter
AU - Büchel, Christian
AU - Poline, JB
AU - Itterman, Bernd
AU - Frouin, Vincent
AU - Martin, Alexandre
AU - Cury, Claire
AU - , IMAGEN study group
AU - Colliot, Olivier
PY - 2024
TI - Automatic rating of incomplete hippocampal inversions evaluated across multiple cohorts
T2 - Machine Learning for Biomedical Imaging
VL - 2
IS - July 2024 issue
SP - 1004
EP - 1029
SN - 2766-905X
DO - https://doi.org/10.59275/j.melba.2024-3d4e
UR - https://melba-journal.org/2024:016
ER -