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Advances in biomedical signal and image processing – A systematic review

open access: yesInformatics in Medicine Unlocked, 2017
Biomedical signal and image processing establish a dynamic area of specialization in both academic as well as research aspects of biomedical engineering.
J. Rajeswari, M. Jagannath
doaj   +2 more sources

Neural activity temporal pattern dictates long-range propagation targets

open access: yesNeuroImage, 2021
Brain possesses a complex spatiotemporal architecture for efficient information processing and computing. However, it remains unknown how neural signal propagates to its intended targets brain-wide.
Alex T.L. Leong   +4 more
doaj   +1 more source

Hippocampus Modulates Vocalizations Responses at Early Auditory Centers

open access: yesNeuroImage, 2023
Despite its prominence in learning and memory, hippocampal influence in early auditory processing centers remains unknown. Here, we examined how hippocampal activity modulates sound-evoked responses in the auditory midbrain and thalamus using ...
Alex T.L. Leong   +3 more
doaj   +1 more source

Functional MRI reveals brain-wide actions of thalamically-initiated oscillatory activities on associative memory consolidation

open access: yesNature Communications, 2023
As a key oscillatory activity in the brain, thalamic spindle activities are long believed to support memory consolidation. However, their propagation characteristics and causal actions at systems level remain unclear.
Xunda Wang   +6 more
doaj   +1 more source

A low-cost and shielding-free ultra-low-field brain MRI scanner

open access: yesNature Communications, 2021
A low cost MRI scanner may have the potential to meet clinical needs at point of care or in low and middle income countries. Here the authors describe a low cost 0.055 Tesla MRI scanner that operates using a standard AC power outlet, and demonstrate its ...
Yilong Liu   +8 more
doaj   +1 more source

Signal and Image Processing in Biomedical Photoacoustic Imaging: A Review [PDF]

open access: yesOptics, 2020
Photoacoustic imaging (PAI) is a powerful imaging modality that relies on the PA effect. PAI works on the principle of electromagnetic energy absorption by the exogenous contrast agents and/or endogenous molecules present in the biological tissue, consequently generating ultrasound waves.
Rayyan Manwar, Mohsin Zafar, Qiuyun Xu
openaire   +1 more source

Bundle-Specific Axon Diameter Index as a New Contrast to Differentiate White Matter Tracts

open access: yesFrontiers in Neuroscience, 2021
In the central nervous system of primates, several pathways are characterized by different spectra of axon diameters. In vivo methods, based on diffusion-weighted magnetic resonance imaging, can provide axon diameter index estimates non-invasively ...
Muhamed Barakovic   +22 more
doaj   +1 more source

Advanced Signal Processing Methods for Biomedical Imaging [PDF]

open access: yesInternational Journal of Biomedical Imaging, 2013
Signal processing is a long-established engineering field with broad applications in so different arenas such as multimedia (audio, still image, video, graphics, etc.), coding, communications, seismology, astronomy, biomedicine, artificial intelligence, and econometrics, to only name some of them.
Juan Ruiz-Alzola   +2 more
openaire   +3 more sources

Resolving bundle-specific intra-axonal T2 values within a voxel using diffusion-relaxation tract-based estimation

open access: yesNeuroImage, 2021
At the typical spatial resolution of MRI in the human brain, approximately 60–90% of voxels contain multiple fiber populations. Quantifying microstructural properties of distinct fiber populations within a voxel is therefore challenging but necessary ...
Muhamed Barakovic   +9 more
doaj   +1 more source

Single-shot attenuation coefficient estimation for ultrasound contrast agents

open access: yesFrontiers in Physics, 2022
Ultrasound contrast agents (UCAs) have broadened the scope of ultrasound imaging and therapeutic applications. One of the parameters of interest when measuring the response of UCAs to ultrasound is their frequency-dependent attenuation coefficient.
Jasleen Birdi   +8 more
doaj   +1 more source

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