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Therapeutic ultrasound enhancement of drug delivery to soft tissues

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

Effects of exposure to 1.5 8MHz focused ultrasound on transport of Evans Blue Dye (EBD) in soft tissues are investigated when an external pressure gradient is applied to induce convective flow through the tissue. The magnitude of the external pressure gradient is chosen to simulate conditions in brain parenchyma during convection-enhanced drug delivery (CED) to the brain. EBD uptake and transport are measured in equine brain, avian muscle and agarose brain-mimicking phantoms. Results show that ultrasound enhances EBD uptake and transport, and the greatest enhancement occurs when the external pressure gradient is applied. The results suggest that exposure of the brain parenchyma to ultrasound could enhance penetration of material infused into the brain during CED therapy.

Original languageEnglish
Title of host publication8th International Symposium on Therapeutic Ultrasound
Pages403-407
Number of pages5
DOIs
StatePublished - 2009
Externally publishedYes
Event8th International Symposium on Therapeutic Ultrasound - Minneapolis, MN, United States
Duration: 10 Sep 200813 Sep 2008

Publication series

NameAIP Conference Proceedings
Volume1113
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference8th International Symposium on Therapeutic Ultrasound
Country/TerritoryUnited States
CityMinneapolis, MN
Period10/09/0813/09/08

Keywords

  • Acoustic targeted drug delivery
  • Convection enhanced delivery
  • Drug delivery
  • Therapeutic ultrasound

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