A scanned, focused, multiple transducer ultrasonic system for localized hyperthermia treatments

K. Hynynen Department of Radiation Oncology, Arizona Health Sciences Center, Tucson, Arizona, 85724, USA

R. Roemer Department of Radiation Oncology, Arizona Health Sciences Center, Tucson, Arizona, 85724, USA; Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, Arizona, 85724, USA

D. Anhalt Department of Electrical and Computer Engineering, University of Arizona, Tucson, Arizona, 85724, USA

C. Johnson Department of Electrical and Computer Engineering, University of Arizona, Tucson, Arizona, 85724, USA

Z. X. Xu Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, Arizona, 85724, USA

W. Swindell Department of Radiation Oncology, Arizona Health Sciences Center, Tucson, Arizona, 85724, USA

T. Cetas Department of Radiation Oncology, Arizona Health Sciences Center, Tucson, Arizona, 85724, USA

show all

Abstract

A commercial diagnostic ultrasound scanner (Octoson) was modified for performing hyperthermia treatments. The temperature elevations were induced in tissues by four large, focused ultrasonic transducers whose common focal zone was scanned along a computer controlled path as determined from B-scan images. The system is described and the results of preliminary tests demonstrating some of its capabilities are given. Extensive tests with canine thighs and kidneys were performed. The blood flow to the kidneys was controllable, and thus tumours having different blood perfusion rates could be simulated. The results showed that the system is capable of inducing a local temperature maximum deep in tissues (up to 10 cm was tested) and that tissues with high perfusion rates could be heated.

Key Words:

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

A scanned, focused, multiple transducer ultrasonic system for localized hyperthermia treatments

Information for

Open access

Opportunities

Help and information

A scanned, focused, multiple transducer ultrasonic system for localized hyperthermia treatments

Abstract

Reprints and Corporate Permissions

Academic Permissions

Related research

To cite this article:

Download citation

Information for

Open access

Opportunities

Help and information

Keep up to date

Your download is now in progress and you may close this window

Login or register to access this feature