Ultrasound linear array for use in intracavitary applicators for thermotherapy of prostatic diseases

J. W. Hand, E. Ebbini, D. O'Keeffe, D. Israel, S. Mohammadtaghi

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

11 Scopus citations

Abstract

Ultrasound intracavitary applicators for hyperthermal treatment may offer significant advantages over electromagnetic devices. We present Specific Absorption Rate (SAR) distributions produced in a homogeneous medium (attenuation 10 Np/m/MHz) by a linear array of 25 planar elements, each 3×15 mm, driven at 500 kHz. Using the pseudo-inverse method to synthesize intensity patterns with a single focus or multiple foci, we show that this array has the potential to treat at distances of approximately 20-60 mm and over ±30 mm with respect to the centre-line of the array. Optimization of array efficiency and intensity distribution and effects of practical details such as inter-element spacing and phase quantization have also been investigated.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Ultrasonics Symposium
PublisherPubl by IEEE
Pages1225-1228
Number of pages4
ISBN (Print)0780312783, 9780780312784
DOIs
StatePublished - 1993
EventProceedings of the IEEE 1993 Ultrasonics Symposium - Baltimore, MD, USA
Duration: Oct 31 1993Nov 3 1993

Publication series

NameProceedings of the IEEE Ultrasonics Symposium
Volume2
ISSN (Print)1051-0117

Other

OtherProceedings of the IEEE 1993 Ultrasonics Symposium
CityBaltimore, MD, USA
Period10/31/9311/3/93

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  • Cite this

    Hand, J. W., Ebbini, E., O'Keeffe, D., Israel, D., & Mohammadtaghi, S. (1993). Ultrasound linear array for use in intracavitary applicators for thermotherapy of prostatic diseases. In Proceedings of the IEEE Ultrasonics Symposium (pp. 1225-1228). (Proceedings of the IEEE Ultrasonics Symposium; Vol. 2). Publ by IEEE. https://doi.org/10.1109/ultsym.1993.339612