Adaptive 2-D cylindrical section phased array system for ultrasonic hyperthermia

H. Wang; E. Ebbini; M. O'Donnell; R. Seip; C. Cain

doi:10.1109/ULTSYM.1992.275851

Adaptive 2-D cylindrical section phased array system for ultrasonic hyperthermia

H. Wang, E. Ebbini, M. O'Donnell, R. Seip, C. Cain

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Scopus citations

Abstract

A prototype 2-D cylindrical section phased array, as part of an adaptive hyperthermia system, was used to examine the role of implantable acoustic sensors for phase aberration correction and motion compensation in ultrasound hyperthermia. After phase aberration correction and motion compensation, enhanced focal patterns were achieved even in the presence of significant aberration and motion. The limited number of acoustic sensors implanted inside a tumor in the clinic necessitate phase aberrations measured at one point to be extrapolated to other neighboring focal points. According to the results obtained here, significantly improved focal patterns can be obtained if phase aberrations and beam shifts are mainly caused by aberrators close to the array surface and extrapolated focal points are close to measured points.

Original language	English (US)
Title of host publication	1992 Ultrasonics Symposium Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1261-1264
Number of pages	4
ISBN (Electronic)	0780305620
DOIs	https://doi.org/10.1109/ULTSYM.1992.275851
State	Published - 1992
Externally published	Yes
Event	1992 Ultrasonics Symposium - Tucson, United States Duration: Oct 20 1992 → Oct 23 1992

Publication series

Name	Proceedings - IEEE Ultrasonics Symposium
Volume	1992-October
ISSN (Print)	1051-0117

Conference

Conference	1992 Ultrasonics Symposium
Country/Territory	United States
City	Tucson
Period	10/20/92 → 10/23/92

Bibliographical note

Funding Information:
Phase extrapolation is more helpful if the prime distortion is caused by a steering structure (i.e., a wedge or a tilted layer). A simple steering error is common to all foci, making extrapolation nearly ideal. As shown in Fig. 3b, phase extrapolation greatly improved proper relocation of foci steered away by the aberrator. Acknowledgment This work was funded in part by grant CA44124 from the National Institutes of Health and an award from Hitachi Central Research Laboratory, Hitachi, LTD, Tokyo, Japan.

Publisher Copyright:
© 1992 IEEE.

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10.1109/ULTSYM.1992.275851

Cite this

Wang, H., Ebbini, E., O'Donnell, M., Seip, R., & Cain, C. (1992). Adaptive 2-D cylindrical section phased array system for ultrasonic hyperthermia. In 1992 Ultrasonics Symposium Proceedings (pp. 1261-1264). [275851] (Proceedings - IEEE Ultrasonics Symposium; Vol. 1992-October). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ULTSYM.1992.275851

Adaptive 2-D cylindrical section phased array system for ultrasonic hyperthermia. / Wang, H.; Ebbini, E.; O'Donnell, M.; Seip, R.; Cain, C.

1992 Ultrasonics Symposium Proceedings. Institute of Electrical and Electronics Engineers Inc., 1992. p. 1261-1264 275851 (Proceedings - IEEE Ultrasonics Symposium; Vol. 1992-October).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wang, H, Ebbini, E, O'Donnell, M, Seip, R & Cain, C 1992, Adaptive 2-D cylindrical section phased array system for ultrasonic hyperthermia. in 1992 Ultrasonics Symposium Proceedings., 275851, Proceedings - IEEE Ultrasonics Symposium, vol. 1992-October, Institute of Electrical and Electronics Engineers Inc., pp. 1261-1264, 1992 Ultrasonics Symposium, Tucson, United States, 10/20/92. https://doi.org/10.1109/ULTSYM.1992.275851

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title = "Adaptive 2-D cylindrical section phased array system for ultrasonic hyperthermia",

abstract = "A prototype 2-D cylindrical section phased array, as part of an adaptive hyperthermia system, was used to examine the role of implantable acoustic sensors for phase aberration correction and motion compensation in ultrasound hyperthermia. After phase aberration correction and motion compensation, enhanced focal patterns were achieved even in the presence of significant aberration and motion. The limited number of acoustic sensors implanted inside a tumor in the clinic necessitate phase aberrations measured at one point to be extrapolated to other neighboring focal points. According to the results obtained here, significantly improved focal patterns can be obtained if phase aberrations and beam shifts are mainly caused by aberrators close to the array surface and extrapolated focal points are close to measured points.",

author = "H. Wang and E. Ebbini and M. O'Donnell and R. Seip and C. Cain",

note = "Funding Information: Phase extrapolation is more helpful if the prime distortion is caused by a steering structure (i.e., a wedge or a tilted layer). A simple steering error is common to all foci, making extrapolation nearly ideal. As shown in Fig. 3b, phase extrapolation greatly improved proper relocation of foci steered away by the aberrator. Acknowledgment This work was funded in part by grant CA44124 from the National Institutes of Health and an award from Hitachi Central Research Laboratory, Hitachi, LTD, Tokyo, Japan. Publisher Copyright: {\textcopyright} 1992 IEEE.; 1992 Ultrasonics Symposium ; Conference date: 20-10-1992 Through 23-10-1992",

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doi = "10.1109/ULTSYM.1992.275851",

language = "English (US)",

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N1 - Funding Information: Phase extrapolation is more helpful if the prime distortion is caused by a steering structure (i.e., a wedge or a tilted layer). A simple steering error is common to all foci, making extrapolation nearly ideal. As shown in Fig. 3b, phase extrapolation greatly improved proper relocation of foci steered away by the aberrator. Acknowledgment This work was funded in part by grant CA44124 from the National Institutes of Health and an award from Hitachi Central Research Laboratory, Hitachi, LTD, Tokyo, Japan. Publisher Copyright: © 1992 IEEE.

PY - 1992

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N2 - A prototype 2-D cylindrical section phased array, as part of an adaptive hyperthermia system, was used to examine the role of implantable acoustic sensors for phase aberration correction and motion compensation in ultrasound hyperthermia. After phase aberration correction and motion compensation, enhanced focal patterns were achieved even in the presence of significant aberration and motion. The limited number of acoustic sensors implanted inside a tumor in the clinic necessitate phase aberrations measured at one point to be extrapolated to other neighboring focal points. According to the results obtained here, significantly improved focal patterns can be obtained if phase aberrations and beam shifts are mainly caused by aberrators close to the array surface and extrapolated focal points are close to measured points.

AB - A prototype 2-D cylindrical section phased array, as part of an adaptive hyperthermia system, was used to examine the role of implantable acoustic sensors for phase aberration correction and motion compensation in ultrasound hyperthermia. After phase aberration correction and motion compensation, enhanced focal patterns were achieved even in the presence of significant aberration and motion. The limited number of acoustic sensors implanted inside a tumor in the clinic necessitate phase aberrations measured at one point to be extrapolated to other neighboring focal points. According to the results obtained here, significantly improved focal patterns can be obtained if phase aberrations and beam shifts are mainly caused by aberrators close to the array surface and extrapolated focal points are close to measured points.

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BT - 1992 Ultrasonics Symposium Proceedings

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Adaptive 2-D cylindrical section phased array system for ultrasonic hyperthermia

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