The fabrication of conformal ultrasound phased arrays for thermal therapy

Author

McGough, Robert J. ; Owens, Amanda M. ; Cindric, Davor ; Heim, Jon W. ; Samulski, Thaddeus V.

Author_Institution

Dept. of Radiat. Oncology, Duke Univ. Med. Center, Durham, NC, USA

Volume

3

fYear

2000

fDate

2000

Firstpage

1617

Abstract

A method for fabricating two-dimensional (2D) ultrasound phased arrays for thermal therapy is described. A 96 element conformal prototype is constructed, and focusing results are also presented. Measured focal patterns indicate that these conformal arrays require some calibration before focusing. Results show that offsets in the element coordinates with respect to the expected positions are the primary source of focal degradation. Measured focal patterns improve dramatically after compensating for element offsets and variations in electronic component values

Keywords

biomedical transducers; biomedical ultrasonics; calibration; hyperthermia; radiation therapy; ultrasonic focusing; ultrasonic transducer arrays; 2D ultrasound phased arrays; 96 element conformal prototype; calibration; conformal ultrasound phased arrays; electronic component values; element coordinate offsets; element offsets; fabrication; focal degradation; focal patterns; focusing results; thermal therapy; Applicators; Calibration; Fabrication; Heating; Hyperthermia; Medical treatment; Phased arrays; Prototypes; Ultrasonic imaging; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2000. Proceedings of the 22nd Annual International Conference of the IEEE

Conference_Location

Chicago, IL

ISSN

1094-687X

Print_ISBN

0-7803-6465-1

Type

conf

DOI

10.1109/IEMBS.2000.900384

Filename

900384