Title :
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
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;
Conference_Titel :
Radio Science Conference, 2002. (NRSC 2002). Proceedings of the Nineteenth National
Print_ISBN :
977-5031-72-9
DOI :
10.1109/NRSC.2002.1022678
