Ultrasonic intensity microscopy for imaging of living cells

Yoshihiro Hagiwara, Yoshifumi Saijo, Akira Ando, Eiichi Chimoto, Hideaki Suda, Yoshito Onoda, Eiji Itoi

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Ultrasound intensity microscopy was developed for in vivo imaging. This paper describes the preliminary results obtained using 300 MHz ultrasound intensity microscopy for in vitro characterization of cell cultures. The novelty of the approach lies in the fact that it allows remote, non-contact and disturbance-free imaging of cultured synovial cells and the changes in the cells' properties due to external stimulants such as transforming growth factor beta-1 (TGF-β1). The intensity imaging method has potential for extracting mechanical cell properties and monitoring the effects of drugs. Ultrasound propagates through a thin specimen such as cultured cells and is reflected at the interface between the specimen and substrate. A two-dimensional distribution of the ultrasonic intensity, which is closely related to the mechanical properties, is visualized to analyze cell organs, such as the nucleus at the central part and the cytoskeleton at the peripheral zone. After stimulation with TGF-β1, the ultrasonic intensity at the actin zone was significantly increased compared with the control.

Original languageEnglish
Pages (from-to)386-388
Number of pages3
JournalUltrasonics
Volume49
Issue number3
DOIs
Publication statusPublished - 2009 Mar 1

Keywords

  • Cell
  • Imaging
  • Mechanical property
  • Synovial tissue
  • TGF-β1
  • Ultrasound intensity microscopy

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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