Enhanced optical scattering by microbubbles

  • Quing Zhu
  • , Britton Chance
  • , W. Timothy Jenkins
  • , Yu Tao Zhang

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations

Abstract

Optical properties of microbubbles (EchoGen, Sonus Pharmaceuticals, WA) have been evaluated using a 200 MHz phase modulation system. Studies have shown that the mean optical pathlength has been increased at 754 nm by an average of 1.5 mm (std. 0.46 mm) when EchoGen was administered to 11 fischer rats at the dose of 100 μl or 150 μl. As a comparison, the mean pathlength has been decreased at the same wavelength by an average of 4.2 mm (std. 3.66 mm) when Indocyanine Green (ICG) was administered at the dose of 100 μl. The mean pathlength change at 816 nm is very small and the possible reasons are discussed. Potential applications of using microbubbles to provide a co-registration of ultrasound and light images of growing tumors are discussed.

Original languageEnglish
Pages (from-to)157-162
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume2979
DOIs
StatePublished - 1997
EventProceedings of Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model and Human Studies II - San Jose, CA, United States
Duration: Feb 9 1997Feb 12 1997

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