SonoSite licenses ultrasound tissue harmonic imaging from RCT

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Research Corporation Technologies (RCT) has granted SonoSite a nonexclusive license to patents owned by RCT that cover ultrasound tissue harmonic imaging (THI).

The Tucson, Ariz.-based RCT manages the THI technology for its partner, the University of Rochester in Rochester, N.Y, due to work by P. Ted Christopher, PhD, at the University's Center for Biomedical Ultrasound in the 1990s, which resulted in a new mode of ultrasound imaging.

Christopher's invention showed that the second and higher-order harmonic response of native tissue to a propagated ultrasound beam could be employed to produce a higher-contrast image than that of the fundamental emitted frequency, according to RCT.

In addition to SonoSite, RCT said that Biosound Esaote, Siemens’ subsidiary Acuson, Royal Philips Electronics and GE are licensees of the THI technology.