Divya Varadarajan

Progression of visual-stimulus-evoked blood velocity response timing across the vascular network measured with individual-vessel phase-contrast fMRA

This paper measures blood velocity response timing across the vascular network using dynamic PC-fMRA, showing arterial and venous responses with distinct temporal delays.

VesSynth: Tubes Are All You Need for Robust Cross-Scale Cross-Modal 3D Vessel Segmentation

This paper introduces VesSynth, a vessel segmentation framework trained on synthetic data that achieves state-of-the-art accuracy across multiple imaging modalities and spatial resolutions.

Functional MRI Signatures of Autonomic Physiology in Aging

This study examines age-related changes in fMRI signatures of autonomic physiology, finding slower respiratory responses and faster cardiac responses with aging, with a notable turning point after age 60.

Visual stimulus-evoked blood velocity responses in individual human posterior cerebral arteries measured with dynamic phase-contrast functional MR angiography

This study introduces a new fMRA method to measure dynamic blood velocity responses in human posterior cerebral arteries during visual stimulation, showing a 10% increase in velocity and indicating neurovascular coupling.

Segmentation of supragranular and infragranular layers in ultra-high resolution 7T ex vivo MRI of the human cerebral cortex

This paper introduces a semi-supervised segmentation model for identifying supragranular and infragranular layers in human cerebral cortex MRI scans with high precision.

BrainSuite BIDS App: Containerized Workflows for MRI Analysis

The paper introduces BrainSuite BIDS App, a containerized workflow for MRI analysis that supports structural, diffusion, and functional data processing using standardized BIDS formats.

Scalable mapping of myelin and neuron density in the human brain with micrometer resolution

This paper quantifies myelin content and neuron density in the human brain using OCT, finding a strong linear relationship between scattering coefficient and myelin content.

A multimodal imaging and analysis pipeline for creating a cellular census of the human cerebral cortex

The paper develops an imaging pipeline to create a cell census of the human cerebral cortex using MRI, immunohistochemistry, and light-sheet fluorescence microscopy.

Conductance-Based Structural Brain Connectivity in Aging and Dementia

This paper quantifies structural brain connectivity using diffusion MRI in aging and dementia, finding age-related trends and regional effects that suggest potential for age prediction and studying structural connections.

A novel algorithm to optimize generalized gamma distributed multiplicative noise with implications on speckle removal from OCT images

This paper introduces an algorithm to optimize generalized gamma distributed multiplicative noise in OCT images, improving speckle removal and contrast-to-noise ratio.