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Accurate predictive models are crucial for analysing COVID-19 mortality trends. This study evaluates the impact of a custom data preprocessing pipeline on ten machine learning models predicting COVID-19 mortality using data from Our World…

Machine Learning · Computer Science 2026-02-27 Sangita Das , Subhrajyoti Maji

Self-supervised learning has greatly facilitated medical image analysis by suppressing the training data requirement for real-world applications. Current paradigms predominantly rely on self-supervision within uni-modal image data, thereby…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Shaohao Rui , Lingzhi Chen , Zhenyu Tang , Lilong Wang , Mianxin Liu , Shaoting Zhang , Xiaosong Wang

Aggregating multi-subject functional magnetic resonance imaging (fMRI) data is indispensable for generating valid and general inferences from patterns distributed across human brains. The disparities in anatomical structures and functional…

Machine Learning · Computer Science 2019-11-20 Weida Li , Mingxia Liu , Fang Chen , Daoqiang Zhang

Functional magnetic resonance imaging (fMRI) technology is popularly used in many fields for studying how the brain reacts to mental stimuli. The identification of optimal fMRI experimental designs is crucial for rendering precise…

Statistics Theory · Mathematics 2015-10-30 Ching-Shui Cheng , Ming-Hung Kao

Due to the growing number of MRI data, automated quality control (QC) has become essential, especially for larger scale analysis. Several attempts have been made in order to develop reliable and scalable QC pipelines. However, the…

Machine Learning · Statistics 2022-06-01 Ghiles Reguig , Marie Chupin , Hugo Dary , Eric Bardinet , Stéphane Lehéricy , Romain Valabregue

Magnetic resonance imaging (MRI) is a central modality for stroke imaging. It is used upon patient admission to make treatment decisions such as selecting patients for intravenous thrombolysis or endovascular therapy. MRI is later used in…

Medical images used in clinical practice are heterogeneous and not the same quality as scans studied in academic research. Preprocessing breaks down in extreme cases when anatomy, artifacts, or imaging parameters are unusual or protocols…

Image and Video Processing · Electrical Eng. & Systems 2022-08-31 Mostafa Mehdipour Ghazi , Mads Nielsen

Reducing the scanning time of very-low field (VLF) magnetic resonance imaging (MRI) scanners, commonly employed for stroke diagnosis, can enhance patient comfort and operational efficiency. The conventional parallel imaging (PI) technique…

Medical Physics · Physics 2025-12-24 Lei Yang , Wei He , Sheng Shen , Yucheng He , Jiamin Wu , Zheng Xu

Resting-state functional Magnetic Resonance Imaging (fMRI) is a powerful imaging technique for studying functional development of the brain in utero. However, unpredictable and excessive movement of fetuses has limited clinical application…

Functional neuroimaging can measure the brain?s response to an external stimulus. It is used to perform brain mapping: identifying from these observations the brain regions involved. This problem can be cast into a linear supervised…

Machine Learning · Computer Science 2012-07-03 Gael Varoquaux , Alexandre Gramfort , Bertrand Thirion

Brain-mapping techniques have proven to be vital in understanding the molecular, cellular, and functional mechanisms of the brain. Normal anatomical imaging can provide structural information on certain abnormalities in the brain. However…

Emerging Technologies · Computer Science 2013-01-03 Nivedita Daimiwal , M. Sundhararajan , Revati Shriram

Understanding brain dynamics is important for neuroscience and mental health. Functional magnetic resonance imaging (fMRI) enables the measurement of neural activities through blood-oxygen-level-dependent (BOLD) signals, which represent…

Neurons and Cognition · Quantitative Biology 2025-06-16 Yifei Sun , Daniel Chahine , Qinghao Wen , Tianming Liu , Xiang Li , Yixuan Yuan , Fernando Calamante , Jinglei Lv

Functional magnetic resonance imaging (fMRI) data have become increasingly available and are useful for describing functional connectivity (FC), the relatedness of neuronal activity in regions of the brain. This FC of the brain provides…

Machine Learning · Statistics 2020-10-14 Andrew DiLernia , Karina Quevedo , Jazmin Camchong , Kelvin Lim , Wei Pan , Lin Zhang

This study proposes an approach to estimate the functional localization and connectivity from CBF and BOLD signals simultaneously measured by ASL (arterial spin labeling) MRI, especially using exploratory Structural Equation Modeling…

Neurons and Cognition · Quantitative Biology 2017-04-11 Jiancheng Zhuang

Autism spectrum disorder (ASD) is one of the major developmental disorders affecting children. Recently, it has been hypothesized that ASD is associated with atypical brain connectivities. A substantial body of researches use Pearson's…

Neurons and Cognition · Quantitative Biology 2019-03-06 Biwei Huang , Kun Zhang , Ruben Sanchez-Romero , Joseph Ramsey , Madelyn Glymour , Clark Glymour

Neural decoding, the process of understanding how brain activity corresponds to different stimuli, has been a primary objective in cognitive sciences. Over the past three decades, advances in functional Magnetic Resonance Imaging (fMRI) and…

Computer Vision and Pattern Recognition · Computer Science 2026-01-28 Yanchen Wang , Adam Turnbull , Tiange Xiang , Yunlong Xu , Sa Zhou , Adnan Masoud , Shekoofeh Azizi , Feng Vankee Lin , Ehsan Adeli

The last decade has witnessed a notable surge in deep learning applications for the analysis of electroencephalography (EEG) data, thanks to its demonstrated superiority over conventional statistical techniques. However, even deep learning…

Signal Processing · Electrical Eng. & Systems 2024-11-28 Federico Del Pup , Andrea Zanola , Louis Fabrice Tshimanga , Alessandra Bertoldo , Manfredo Atzori

Purpose: To develop a data-efficient strategy for accelerated MRI reconstruction with Diffusion Probabilistic Generative Models (DPMs) that enables faster scan times in clinical stroke MRI when only limited fully-sampled data samples are…

Image and Video Processing · Electrical Eng. & Systems 2026-03-16 Yamin Arefeen , Sidharth Kumar , Steven Warach , Hamidreza Saber , Jonathan Tamir

Recently, leveraging big data in deep learning has led to significant performance improvements, as confirmed in applications like mental state decoding using fMRI data. However, fMRI datasets remain relatively small in scale, and the…

Neurons and Cognition · Quantitative Biology 2024-10-08 Yuto Nishimura , Masataka Sawayama , Ayumu Yamashita , Hideki Nakayama , Kaoru Amano

The brain perfusion ROI detection being a preliminary step, designed to exclude non-brain tissues from analyzed DSC perfusion MR images. Its accuracy is considered as the key factor for delivering correct results of perfusion data analysis.…

Medical Physics · Physics 2024-05-15 Svitlana Alkhimova , Svitlana Sliusar