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Hippocampal atrophy in Alzheimer's disease (AD) is asymmetric and spatially inhomogeneous. While extensive work has been done on volume and shape analysis of atrophy of the hippocampus in AD, less attention has been given to hippocampal…

Image and Video Processing · Electrical Eng. & Systems 2024-09-20 Shen Zhu , Ifrah Zawar , Jaideep Kapur , P. Thomas Fletcher

The automatic assessment of hippocampus volume is an important tool in the study of several neurodegenerative diseases such as Alzheimer's disease. Specifically, the measurement of hippocampus subfields properties is of great interest since…

Quantitative Methods · Quantitative Biology 2020-02-03 Jose V. Manjon , Jose E. Romero , Pierrick Coupe

Hippocampus segmentation plays a key role in diagnosing various brain disorders such as Alzheimer's disease, epilepsy, multiple sclerosis, cancer, depression and others. Nowadays, segmentation is still mainly performed manually by…

Image and Video Processing · Electrical Eng. & Systems 2020-05-15 Diedre Carmo , Bruna Silva , Clarissa Yasuda , Letícia Rittner , Roberto Lotufo

Tissue loss in the hippocampi has been heavily correlated with the progression of Alzheimer's Disease (AD). The shape and structure of the hippocampus are important factors in terms of early AD diagnosis and prognosis by clinicians.…

Image and Video Processing · Electrical Eng. & Systems 2022-03-03 Lukas Folle , Sulaiman Vesal , Nishant Ravikumar , Andreas Maier

Background: Alzheimers disease is a progressive neurodegenerative disorder and the main cause of dementia in aging. Hippocampus is prone to changes in the early stages of Alzheimers disease. Detection and observation of the hippocampus…

Image and Video Processing · Electrical Eng. & Systems 2021-06-17 Hossein Yousefi-Banaem , Saber Malekzadeh

Hippocampus segmentation on magnetic resonance imaging is of key importance for the diagnosis, treatment decision and investigation of neuropsychiatric disorders. Automatic segmentation is an active research field, with many recent models…

Image and Video Processing · Electrical Eng. & Systems 2021-02-12 Diedre Carmo , Bruna Silva , Clarissa Yasuda , Letícia Rittner , Roberto Lotufo

Detection and segmentation of the hippocampal structures in volumetric brain images is a challenging problem in the area of medical imaging. In this paper, we propose a two-stage 3D fully convolutional neural network that efficiently…

Computer Vision and Pattern Recognition · Computer Science 2019-02-13 Dengsheng Chen , Wenxi Liu , You Huang , Tong Tong , Yuanlong Yu

In this article, we analyze the morphometry of hippocampus in subjects with very mild dementia of Alzheimer's type (DAT) and nondemented controls and how it changes over a two-year period. Morphometric differences with respect to a template…

Background: The hippocampus plays a crucial role in memory and cognition. Because of the associated toxicity from whole brain radiotherapy, more advanced treatment planning techniques prioritize hippocampal avoidance, which depends on an…

Medical Physics · Physics 2023-06-16 Yang Lei , Yifu Ding , Richard L. J. Qiu , Tonghe Wang , Justin Roper , Yabo Fu , Hui-Kuo Shu , Hui Mao , Xiaofeng Yang

Predicting the future development of an anatomical shape from a single baseline observation is a challenging task. But it can be essential for clinical decision-making. Research has shown that it should be tackled in curved shape spaces, as…

Computer Vision and Pattern Recognition · Computer Science 2024-02-23 Doğa Türkseven , Islem Rekik , Christoph von Tycowicz , Martin Hanik

Longitudinal magnetic resonance imaging data is used to model trajectories of change in brain regions of interest to identify areas susceptible to atrophy in those with neurodegenerative conditions like Alzheimer's disease. Most methods for…

Applications · Statistics 2024-07-25 Robert Zielinski , Kun Meng , Ani Eloyan

We propose a method to learn a distribution of shape trajectories from longitudinal data, i.e. the collection of individual objects repeatedly observed at multiple time-points. The method allows to compute an average spatiotemporal…

Computer Vision and Pattern Recognition · Computer Science 2018-06-14 Alexandre Bône , Olivier Colliot , Stanley Durrleman

We describe a new method to automatically discriminate between patients with Alzheimer's disease (AD) or mild cognitive impairment (MCI) and elderly controls, based on multidimensional classification of hippocampal shape features. This…

This report provides an overview of the current state of the art deep learning architectures and optimisation techniques, and uses the ADNI hippocampus MRI dataset as an example to compare the effectiveness and efficiency of different…

Machine Learning · Computer Science 2015-05-11 Matthew Lai

Volume change measures derived from longitudinal MRI (e.g. hippocampal atrophy) are a well-studied biomarker of disease progression in Alzheimer's Disease (AD) and are used in clinical trials to track the therapeutic efficacy of…

The incomplete hippocampal inversion (IHI) is an atypical anatomical pattern of the hippocampus. However, the hippocampus is not a homogeneous structure, as it consists of segregated subfields with specific characteristics. While IHI is not…

Neurons and Cognition · Quantitative Biology 2023-05-01 Agustina Fragueiro , Giorgia Committeri , Claire Cury

We introduce a wide and deep neural network for prediction of progression from patients with mild cognitive impairment to Alzheimer's disease. Information from anatomical shape and tabular clinical data (demographics, biomarkers) are fused…

Machine Learning · Computer Science 2020-04-01 Sebastian Pölsterl , Ignacio Sarasua , Benjamín Gutiérrez-Becker , Christian Wachinger

Motion-related artifacts are inevitable in Magnetic Resonance Imaging (MRI) and can bias automated neuroanatomical metrics such as cortical thickness. These biases can interfere with statistical analysis which is a major concern as motion…

Image and Video Processing · Electrical Eng. & Systems 2025-06-11 Charles Bricout , Samira Ebrahimi Kahou , Sylvain Bouix

The hippocampus plays a vital role in the diagnosis and treatment of many neurological disorders. Recent years, deep learning technology has made great progress in the field of medical image segmentation, and the performance of related…

Computer Vision and Pattern Recognition · Computer Science 2022-11-16 Heyu Huang , Runmin Cong , Lianhe Yang , Ling Du , Cong Wang , Sam Kwong

Deep learning methods have significantly advanced medical image segmentation, yet their success hinges on large volumes of manually annotated data, which require specialized expertise for accurate labeling. Additionally, these methods often…

Image and Video Processing · Electrical Eng. & Systems 2024-09-04 Wangang Cheng , Guanghua He , Keli Hu , Mingyu Fang , Liang Dong , Zhong Li , Hancan Zhu
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