Novel adaptive control system for ultrasound hyperthermia treatment of prostate disease

L. Sun, Jeffrey Louis Schiano, N. B. Smith

    Research output: Contribution to journalConference articlepeer-review

    4 Scopus citations

    Abstract

    A novel model reference adaptive control (MRAC) method was proposed and tested with a transrectal intracavitary applicator for thermal treatment of prostate disease using ultrasound hyperthermia. Two significant advantages of this innovative adaptive control method are: 1) there is no need of a priori knowledge of the tissue properties and 2) the controller could adaptively change the amplitudes and phases of the array's driving signal according to the perfusion rate and other dynamic tissue properties. Computer simulations, ex vivo and in vivo experimental results all showed that with this adaptive controller the tissue was heated up to 43 ± 0.2°C within 7 ± 2 minutes, and adaptively maintained 43°C with dynamic blood flow for the rest period of the hyperthermia.

    Original languageEnglish (US)
    Pages (from-to)1274-1277
    Number of pages4
    JournalProceedings of the IEEE Ultrasonics Symposium
    Volume2
    StatePublished - Dec 1 2003
    Event2003 IEEE Ultrasonics Symposium - Proceedings - Honolulu, HI, United States
    Duration: Oct 5 2003Oct 8 2003

    All Science Journal Classification (ASJC) codes

    • Acoustics and Ultrasonics

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