Contact

  • Academic
    tommydb@stanford.edu
    University - Student Department: Computer Science Position: Undergraduate
    University - Student Department: Mathematics Position: Undergraduate
    University - Student Department: Computer Science Position: Graduate

Additional Info

  • Mail Code: 9015

All Publications

  • Vascular waveform analysis using Bayesian pulse deconvolution. bioRxiv : the preprint server for biology Ruth, P. S., DeBenedetti, T., O'Brien, L., Landay, J. A., Coleman, T. P., Fox, E. B. 2026

    Abstract

    Vascular waveforms, which measure bulk flow in blood vessels, are widely used to measure vital signs, diagnose conditions, and predict long-term health outcomes. Analyzing vascular waveforms depends on three fundamentally interdependent tasks: signal filtering, pulse timing detection, and pulse shape extraction. We hypothesized that Bayesian pulse deconvolution can achieve improved performance on all three tasks by solving them jointly. This method uses an analytical, generative model of vascular waveforms with priors informed by physical and biological domain knowledge. In simulations, Bayesian pulse deconvolution achieves better performance on all tasks compared with existing algorithms: 90% reduction of median filtering error, 60% reduction in pulse timing error, and 85% reduction in shape extraction error. The advantages in simulations extend to human recordings of photoplethysmography waveforms. Taking real time-synchronized electrocardiogram R-R intervals as a proxy ground truth, Bayesian pulse deconvolution achieves 40% lower pulse interval estimation error (RMSE =5.1 ms) compared with typical algorithms (RMSE = 8.3 ms, p=1e-10). By extracting more accurate and informative insights from vascular waveforms, Bayesian pulse deconvolution could advance a wide array of health technologies that rely on interpreting signals from blood vessels.

    View details for DOI 10.64898/2026.02.09.699383

    View details for PubMedID 41727149

    View details for PubMedCentralID PMC12919062