Power requirements from instrumentation for ultrasound interstitial heating at variable heat sinks location

Author

Jarosz, B.J.

Author_Institution

Inst. for Phys., Carleton Univ., Ottawa, Ont., Canada

Volume

3

fYear

2000

fDate

2000

Firstpage

1349

Abstract

We discuss role of discrete heat sinks in ultrasound interstitial heating. We consider an array of four applicators used for the heating. Each of the applicators is surrounded by three microscopic heat sinks. Their distance from the applicators varies from 1.60 to 8.14 mm. We found that the heat sinks that are very close to the applicators modify temperatures very substantially. While the required power needs to be increased by about 20% with the heat sinks at 1.60 mm from the applicator the increase of about 10% is needed for heat sinks at 8.14 mm

Keywords

acoustic intensity; biomedical ultrasonics; heat sinks; hyperthermia; mesh generation; temperature distribution; ultrasonic arrays; 1.6 to 8.14 mm; FEA mesh; array of four applicators; discrete heat sinks; microscopic heat sinks; modified bio-heat transfer equation; power requirements; tissue temperature distribution; treatment planning; ultrasound instrumentation; ultrasound interstitial heating; variable heat sinks location; Applicators; Field emitter arrays; Heat sinks; Heat transfer; Heating; Instruments; Medical treatment; Specific absorption rate; Temperature distribution; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE

Conference_Location

Baltimore, MD

ISSN

1091-5281

Print_ISBN

0-7803-5890-2

Type

conf

DOI

10.1109/IMTC.2000.848695

Filename

848695