Imaging of iron oxide nanoparticles using magneto-motive ultrasound

M. Mehrmohammadi, J. Oh, L. Ma, E. Yantsen, T. Larson, S. Mallidi, S. Park, K. P. Johnston, K. Sokolov, T. Milner, S. Emelianov

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

42 Scopus citations


Due to its excellent spatial resolution, fast and reliable performance, cost and wide availability, ultrasound should be considered the imaging modality of choice for many applications including molecular imaging. However, ultrasound imaging cannot image molecular content of tissue due to trade-off between spatial resolution and penetration depth. Consequently, contrast agents have been developed both to enhance the contrast of ultrasound images and to make the images molecularly specific. Most ultrasound contrast agents, however, are micrometer sized and may not be applicable to wide range of pathology-specific cellular and molecular imaging. We have developed an imaging technique - magneto-motive ultrasound (MMUS) imaging, capable of imaging magnetic nanoparticles subjected to time-varying magnetic field. The result of our studies indicate that magnetically excited nanoparticles can be used as contrast agents in magneto-motive ultrasound imaging thus expanding the role of ultrasound imaging to cellular scales and molecular sensitivity.

Original languageEnglish
Title of host publication2007 IEEE Ultrasonics Symposium Proceedings, IUS
Number of pages4
StatePublished - 2007
Event2007 IEEE Ultrasonics Symposium, IUS - New York, NY, United States
Duration: 28 Oct 200731 Oct 2007

Publication series

NameProceedings - IEEE Ultrasonics Symposium
ISSN (Print)1051-0117


Conference2007 IEEE Ultrasonics Symposium, IUS
Country/TerritoryUnited States
CityNew York, NY


  • Cellular imaging
  • Contrast agents
  • Imaging
  • Magnetic force
  • Magnetomotive
  • Molecular imaging
  • Nanocomposites
  • Nanoparticles
  • Ultrasound


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