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Related Experiment Video

Updated: Jul 16, 2026

Endothelialized Microfluidics for Studying Microvascular Interactions in Hematologic Diseases
11:08

Endothelialized Microfluidics for Studying Microvascular Interactions in Hematologic Diseases

Published on: June 22, 2012

Hemodynamic Metrics and Arterial Dysfunction: Insights From a Novel Microfluidic Device.

Yash Doshi1, Jaywant Arakeri1,2, Namrata Gundiah1

  • 1Department of Mechanical Engineering, Indian Institute of Science, Bangalore, India.

International Journal for Numerical Methods in Biomedical Engineering
|July 14, 2026
PubMed
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This study reviews hemodynamic metrics, finding that a combination of anisotropy ratio (AR) and magnitude-sensitive metrics may best characterize disturbed blood flow, advancing vascular disease research.

Area of Science:

  • Cardiovascular Science
  • Biomedical Engineering
  • Fluid Dynamics

Background:

  • Hemodynamic metrics, especially wall shear stress (WSS), are crucial for understanding endothelial cell (EC) function and vascular pathologies.
  • Arterial diseases like hypertension, atherosclerosis, aneurysms, and thrombosis are influenced by blood flow patterns.

Purpose of the Study:

  • To review and categorize 35 hemodynamic metrics for their relevance to specific vascular pathologies.
  • To analyze key metrics in disturbed flow conditions using computational fluid dynamics (CFD) and a microfluidic platform.
  • To identify limitations in current metrics and propose a unified approach for characterizing complex flow environments.

Main Methods:

  • Review and categorization of 35 hemodynamic metrics.
Keywords:
arterial dysfunctiondisturbed flowsmultidirectional flowsorgan‐on‐chipwall shear stress

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Dynamic Measurement and Imaging of Capillaries, Arterioles, and Pericytes in Mouse Heart
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Dynamic Measurement and Imaging of Capillaries, Arterioles, and Pericytes in Mouse Heart

Published on: July 29, 2020

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Last Updated: Jul 16, 2026

Endothelialized Microfluidics for Studying Microvascular Interactions in Hematologic Diseases
11:08

Endothelialized Microfluidics for Studying Microvascular Interactions in Hematologic Diseases

Published on: June 22, 2012

Dynamic Measurement and Imaging of Capillaries, Arterioles, and Pericytes in Mouse Heart
07:16

Dynamic Measurement and Imaging of Capillaries, Arterioles, and Pericytes in Mouse Heart

Published on: July 29, 2020

  • Simulation of disturbed flow using computational fluid dynamics (CFD).
  • Analysis using a novel microfluidic endothelium-on-chip platform.

    • Main Results:

    • Shear rosettes provide a comprehensive description of WSS magnitude and direction.
    • Anisotropy ratio (AR) characterizes multidirectional flow but cannot differentiate steady from oscillatory flow.
    • Existing metrics like transWSS and DOSI have limitations in quantifying bidirectional WSS in low flow or stagnant regions.

    Conclusions:

    • A unified metric integrating WSS magnitude and bidirectionality is needed.
    • Combining AR with magnitude-sensitive metrics (e.g., TAWSS, TransWSS_min) may overcome current limitations.
    • CFD and microfluidic platforms offer a robust framework for studying EC responses to disturbed flow and vascular disease progression.