Feedback Control of Phased Array Electromagnetic Hyperthermia Using MRI Temperature Mapping

This work focuses on closed loop control of microwave hyperthermia using noninvasive MRI thermometry. The following developments are reported here: (1) An integrated MR-microwave hyperthermia system intended for small animal studies was designed and built. (2) A new technique is presented that allows noninvasive mapping of the relative phase patterns of the microwave fields inside a phantom. (3) An MRI-based technique is presented for closed loop spatial steering of the hot spot in a phased array system. (4) Noninvasive techniques are demonstrated that allow focusing of small-wavelength microwave fields into a heterogeneous medium. Temporal and spatial control of microwave heating are demonstrated that represent typical clinical applications.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Electrical and Computer Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Behnia, Babak

Contributors dc:contributor

• Andrew G. Webb

• Health Sciences, Radiology

Language dc:language

eng

Identifier

(MiAaPQ)AAI3044047

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/80758