Temperature distributions in the human brain model during ultrasound hyperthermia

Author

Ismail, N.H. ; Ibrahim, A.T.

Author_Institution

Dept. of Electr. Eng., Alexandria Univ., Egypt

fYear

2002

fDate

2002

Firstpage

655

Lastpage

661

Abstract

One of the important applications of ultrasound hyperthermia is temperature elevation at specified locations in the human brain. The ultrasound applicator used is a circular phased array surrounding the human head. The human head model is assumed to be two concentric spheres of skin and bone containing a hemisphere of brain. The single and multiple foci patterns of the ultrasound intensity generated by the circular phased array is investigated. The heating patterns, temperature distributions, corresponding to the absorption of ultrasound in the brain region is determined by solving the bioheat equation.

Keywords

biomedical ultrasonics; brain models; hyperthermia; temperature distribution; tumours; ultrasonic absorption; ultrasonic arrays; ultrasonic focusing; bioheat equation; circular phased array; focus patterns; heating patterns; human brain model; temperature distributions; temperature elevation; tumor hyperthermia; ultrasound applicator; ultrasound hyperthermia; ultrasound intensity; Applicators; Bones; Brain modeling; Heating; Humans; Hyperthermia; Phased arrays; Skin; Temperature distribution; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Science Conference, 2002. (NRSC 2002). Proceedings of the Nineteenth National

Print_ISBN

977-5031-72-9

Type

conf

DOI

10.1109/NRSC.2002.1022678

Filename

1022678