• IEEE Trans Ultrason Ferroelectr Freq Control · Dec 2005

    Letter

    Transducer for harmonic intravascular ultrasound imaging.

    • Hendrik J Vos, Martijn E Frijlink, Erik Droog, David E Goertz, Gerrit Blacquière, Anton Gisolf, Nico de Jong, and Antonius F W van der Steen.
    • IEEE Trans Ultrason Ferroelectr Freq Control. 2005 Dec 1;52(12):2418-22.

    AbstractA recent study has shown the feasibility of tissue harmonic imaging (THI) using an intravascular ultrasound (IVUS) transducer. This correspondence describes the design, fabrication, and characterization of a THI-optimized piezoelectric transducer with oval aperture of 0.75 mm by 1 mm. The transducer operated at 20 MHz and 40 MHz, and was comprised of a single piezoelectric layer with additional passive layers. The Krimholtz-Leedom-Matthaei (KLM) model was used to iteratively find optimal material properties of the different layers. The transducer characterization showed -6 dB fractional bandwidths of 30% and 25%, and two-way insertion losses of -20 dB and -36 dB, respectively.

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