New piezocrystal material in the development of a 96-element array transducer for MR-guided focused ultrasound surgery

Zhen Qiu, Roderick Habeshaw, Julien Fortine, Zhihong Huang, Christine Demore, Sandy Cochran

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Piezocrystal materials have been recognized as having better performance than piezoelectric ceramics, and have thus been widely adopted in ultrasound imaging arrays. Although their behaviour is susceptible to temperature and pressure, their large electromechanical coupling coefficients and other excellent piezoelectric properties also offer the potential for further improvements in the efficiency of therapeutic ultrasound transducers. Furthermore, new piezocrystals with modified compositions have been developed recently to increase their tolerance to temperature and pressure. In this work, a prototype of faceted bowl transducer was designed and manufactured as a proof of concept to explore practical issues associated with adoption of piezocrystals for magnetic resonance imaging guided focused ultrasound surgery.

    Original languageEnglish
    Title of host publication12th International Symposium on Therapeutic Ultrasound
    EditorsStephen Meairs
    Place of PublicationMelville, N.Y.
    PublisherAmerican Institute of Physics
    Pages282-287
    Number of pages6
    ISBN (Print)9780735411203
    DOIs
    Publication statusPublished - 2012
    Event12th International Society for Therapeutic Ultrasound Symposium - Heidelberg Convention Center, Heidelberg, Germany
    Duration: 10 Jun 201213 Jun 2012
    http://www.istu.org/events/ann2012/ann2012.aspx

    Publication series

    NameAIP conference proceedings
    PublisherAmerican Institute of Physics
    Volume1503
    ISSN (Print)0094-243X

    Conference

    Conference12th International Society for Therapeutic Ultrasound Symposium
    Abbreviated titleISTU 2012
    CountryGermany
    CityHeidelberg
    Period10/06/1213/06/12
    Internet address

    Keywords

    • 1-3 composite material
    • Piezocrystal
    • Faceted bowl transducer
    • Piezoceramic
    • Therapeutic ultrasound
    • MRI-guided focused ultrasound

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