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相关论文: Gaussian Process Uncertainty in Age Estimation as …

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The development of statistical approaches for the joint modelling of the temporal changes of imaging, biochemical, and clinical biomarkers is of paramount importance for improving the understanding of neurodegenerative disorders, and for…

应用统计 · 统计学 2018-02-16 Marco Lorenzi , Maurizio Filippone , Daniel C. Alexander , Sebastien Ourselin

Age is an essential factor in modern diagnostic procedures. However, assessment of the true biological age (BA) remains a daunting task due to the lack of reference ground-truth labels. Current BA estimation approaches are either restricted…

计算机视觉与模式识别 · 计算机科学 2021-05-18 Karim Armanious , Sherif Abdulatif , Wenbin Shi , Tobias Hepp , Sergios Gatidis , Bin Yang

The brain-age gap is one of the most investigated risk markers for brain changes across disorders. While the field is progressing towards large-scale models, recently incorporating uncertainty estimates, no model to date provides the…

The deviation between chronological age and biological age is a well-recognized biomarker associated with cognitive decline and neurodegeneration. Age-related and pathology-driven changes to brain structure are captured by various…

机器学习 · 计算机科学 2022-11-01 Saurabh Sihag , Gonzalo Mateos , Corey McMillan , Alejandro Ribeiro

Brain age is the estimate of biological age derived from neuroimaging datasets using machine learning algorithms. Increasing \textit{brain age gap} characterized by an elevated brain age relative to the chronological age can reflect…

机器学习 · 计算机科学 2025-01-06 Saurabh Sihag , Gonzalo Mateos , Alejandro Ribeiro

Brain age is the estimate of biological age derived from neuroimaging datasets using machine learning algorithms. Increasing brain age with respect to chronological age can reflect increased vulnerability to neurodegeneration and cognitive…

定量方法 · 定量生物学 2024-02-13 Saurabh Sihag , Gonzalo Mateos , Alejandro Ribeiro

In this study we propose a deformation-based framework to jointly model the influence of aging and Alzheimer's disease (AD) on the brain morphological evolution. Our approach combines a spatio-temporal description of both processes into a…

神经元与认知 · 定量生物学 2019-05-27 Raphaël Sivera , Hervé Delingette , Marco Lorenzi , Xavier Pennec , Nicholas Ayache

Age is an important variable to describe the expected brain's anatomy status across the normal aging trajectory. The deviation from that normative aging trajectory may provide some insights into neurological diseases. In neuroimaging,…

计算机视觉与模式识别 · 计算机科学 2023-04-14 Huy-Dung Nguyen , Michaël Clément , Boris Mansencal , Pierrick Coupé

Normative aging trends of the brain can serve as an important reference in the assessment of neurological structural disorders. Such models are typically developed from longitudinal brain image data -- follow-up data of the same subject…

计算机视觉与模式识别 · 计算机科学 2021-06-29 Alphin J Thottupattu , Jayanthi Sivaswamy , Venkateswaran P. Krishnan

Machine-learning-based age estimation has received lots of attention. Traditional age estimation mechanism focuses estimation age error, but ignores that there is a deviation between the estimated age and real age due to disease.…

计算机视觉与模式识别 · 计算机科学 2021-03-12 Fan Li , Yongming Li , Pin Wang , Jie Xiao , Fang Yan , Xinke Li

Alzheimer's disease is a debilitating disorder marked by a decline in cognitive function. Timely identification of the disease is essential for the development of personalized treatment strategies that aim to mitigate its progression. The…

计算机视觉与模式识别 · 计算机科学 2025-11-27 Xin Hong , Kaifeng Huang

Machine learning analysis of neuroimaging data can accurately predict chronological age in healthy people and deviations from healthy brain ageing have been associated with cognitive impairment and disease. Here we sought to further…

Preterm newborns undergo various stresses that may materialize as learning problems at school-age. Sleep staging of the Electroencephalogram (EEG), followed by prediction of their brain-age from these sleep states can quantify deviations…

机器学习 · 统计学 2018-09-20 Kirubin Pillay , Maarten De Vos

Background: Brain maturation and aging involve significant microstructural changes, resulting in functional and cognitive alterations. Quantitative MRI (qMRI) can measure this evolution, distinguishing the physiological effects of normal…

In computational neuroscience, there has been an increased interest in developing machine learning algorithms that leverage brain imaging data to provide estimates of "brain age" for an individual. Importantly, the discordance between brain…

定量方法 · 定量生物学 2023-10-30 Saurabh Sihag , Gonzalo Mateos , Corey McMillan , Alejandro Ribeiro

Neurodegeneration, characterized by the progressive loss of neuronal structure or function, is commonly assessed in clinical practice through reductions in cortical thickness or brain volume, as visualized by structural MRI. While…

信号处理 · 电气工程与系统科学 2025-10-15 Saurabh Sihag , Gonzalo Mateos , Alejandro Ribeiro

Several biomarkers are hypothesized to indicate early stages of Alzheimer's disease, well before the cognitive symptoms manifest. Their precise relations to the disease progression, however, is poorly understood. This lack of understanding…

应用统计 · 统计学 2025-05-12 Mingyuan Li , Zheyu Wang , Akihiko Nishimura

Additionally to the extensive use in clinical medicine, biological age (BA) in legal medicine is used to assess unknown chronological age (CA) in applications where identification documents are not available. Automatic methods for age…

图像与视频处理 · 电气工程与系统科学 2020-02-26 Stefan Eggenreich , Christian Payer , Martin Urschler , Darko Štern

Machine learning is a rapidly evolving field with a wide range of applications, including biological signal analysis, where novel algorithms often improve the state-of-the-art. However, robustness to algorithmic variability - measured by…

信号处理 · 电气工程与系统科学 2024-02-16 Tobias Ettling , Sari Saba-Sadiya , Gemma Roig

Alzheimer's disease is a major cause of dementia. Its diagnosis requires accurate biomarkers that are sensitive to disease stages. In this respect, we regard probabilistic classification as a method of designing a probabilistic biomarker…

机器学习 · 计算机科学 2017-06-06 Murat Seckin Ayhan , Vijay Raghavan , Alzheimer's disease Neuroimaging Initiative
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