Development of a platelet adhesion transport equation for a computational thrombosis model

Joshua O. Taylor, Ling Yang, Steven Deutsch, Keefe B. Manning

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Thrombosis is a significant issue for cardiovascular device development and use. While thrombosis models are available, very few are device-related and none have been thoroughly validated experimentally. Here, we introduce a surface adherent platelet transport equation into a continuum model to account for the biomaterial interface/blood interaction. Using a rotating disc system and polyurethane-urea material, we characterize steady and pulsatile flow fields using laser Doppler velocimetry. In vitro measurements of platelet adhesion are used in combination with the LDV data to provide further experimental validation. The rotating disc system is computationally studied using the device-induced thrombosis model with the surface platelet adherent transport equation. The results indicate that the flow field is in excellent agreement to the experimental LDV data and that the platelet adhesion simulations are in good agreement with the in vitro platelet data. These results provide good evidence that this transport equation can be used to express the relationship between blood and a biomaterial if the correct platelet adhesion characteristics are known for the biomaterial. Further validation is necessary with other materials.

Original languageEnglish (US)
Pages (from-to)114-120
Number of pages7
JournalJournal of Biomechanics
Volume50
DOIs
StatePublished - Jan 4 2017

Fingerprint

Platelets
Thrombosis
Blood Platelets
Adhesion
Biocompatible Materials
Biomaterials
Rotating disks
Equipment and Supplies
Flow fields
Blood
Pulsatile Flow
Pulsatile flow
Laser-Doppler Flowmetry
Polyurethanes
Steady flow
Urea
Velocity measurement
Lasers

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Orthopedics and Sports Medicine
  • Biomedical Engineering
  • Rehabilitation

Cite this

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Development of a platelet adhesion transport equation for a computational thrombosis model. / Taylor, Joshua O.; Yang, Ling; Deutsch, Steven; Manning, Keefe B.

In: Journal of Biomechanics, Vol. 50, 04.01.2017, p. 114-120.

Research output: Contribution to journalArticle

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AU - Taylor, Joshua O.

AU - Yang, Ling

AU - Deutsch, Steven

AU - Manning, Keefe B.

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AB - Thrombosis is a significant issue for cardiovascular device development and use. While thrombosis models are available, very few are device-related and none have been thoroughly validated experimentally. Here, we introduce a surface adherent platelet transport equation into a continuum model to account for the biomaterial interface/blood interaction. Using a rotating disc system and polyurethane-urea material, we characterize steady and pulsatile flow fields using laser Doppler velocimetry. In vitro measurements of platelet adhesion are used in combination with the LDV data to provide further experimental validation. The rotating disc system is computationally studied using the device-induced thrombosis model with the surface platelet adherent transport equation. The results indicate that the flow field is in excellent agreement to the experimental LDV data and that the platelet adhesion simulations are in good agreement with the in vitro platelet data. These results provide good evidence that this transport equation can be used to express the relationship between blood and a biomaterial if the correct platelet adhesion characteristics are known for the biomaterial. Further validation is necessary with other materials.

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