Cited by 85Memory and Neural MechanismsMedical Image Segmentation TechniquesMedical and Biological Sciences

Identification of the human medial temporal lobe regions on magnetic resonance images: Human Medial Temporal Lobe Landmarks

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Frankó, Edit, Insausti, Ana Maria, Artacho-Pérula, Emilio, Insausti, Ricardo, Chavoix, Chantal·2014·Human Brain Mapping

Abstract

The medial temporal lobe (MTL) plays a key role in learning, memory, spatial navigation, emotion, and social behavior. The improvement of noninvasive neuroimaging techniques, especially magnetic resonance imaging, has increased the knowledge about this region and its involvement in cognitive functions and behavior in healthy subjects and in patients with various neuropsychiatric and neurodegenerative disorders. However, cytoarchitectonic boundaries are not visible on magnetic resonance images (MRI), which makes it difficult to identify precisely the different parts of the MTL (hippocampus, amygdala, temporopolar, perirhinal, entorhinal, and posterior parahippocampal cortices) with imaging techniques, and thus to determine their involvement in normal and pathological functions. Our aim in this study was to define neuroanatomical landmarks visible on MRI, which can facilitate the examination of this region. We examined the boundaries of the MTL regions in 50 post-mortem brains. In eight cases, we also obtained post-mortem MRI on which the MTL boundaries were compared with histological examination before applying them to 26 in vivo MRI of healthy adults. We then defined the most relevant neuroanatomical landmarks that set the rostro-caudal limits of the MTL structures, and we describe a protocol to identify each of these structures on coronal T1-weighted MRI. This will help the structural and functional imaging investigations of the MTL in various neuropsychiatric and neurodegenerative disorders affecting this region.

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  • The anterior HF, posterior HF, PRC, and PHC were manually segmented according to previously published guidelines.

    “The anterior HF (HF head), posterior HF (HF body and tail), PRC, and PHC were manually segmented on the MPRAGE coronal plane according to previously published guidelines (Insausti et al., 1998; Franko et al., 2014).”

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Authors
Frankó, E., Insausti, A. M., Artacho-Pérula, E., Insausti, R., & Chavoix, C.
Affiliations
  • Inserm (FR)
  • Department of Health, Physical Therapy School; Public University of Navarra; Tudela Spain
  • Human Neuroanatomy Laboratory; School of Medicine; University of Castilla-La Mancha; Albacete Spain
  • University of Castilla-La Mancha (ES)
Venue
Human Brain Mapping
Publisher
Wiley
Published
2012-08-30
Volume
35
Issue
1
Pages
248-256
ISSN
1065-9471 (ISSN-L)
OpenAlex
W1581703214
Cited by
85
References
64
Citations by year
2025: 5 · 2024: 5 · 2023: 4 · 2022: 3 · 2021: 6 · 2020: 3 · 2019: 9 · 2018: 9 · 2017: 9 · 2016: 10 · 2015: 6 · 2014: 4 · 2013: 11
FWCI
3.44
Type
journal article
Language
en
Open access
Locations
  • Human Brain Mapping (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Medical Image Segmentation Techniques
  • Health Sciences › Medicine › Anatomy › Medical and Biological Sciences
Keywords
medial temporal lobe, hippocampus, amygdala, parahippocampal cortex, entorhinal cortex, perirhinal cortex, postmortem MRI
MeSH terms
Aged, Aged, 80 and over, Female, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Middle Aged, Temporal Lobe

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