title: Real-time two-dimensional temperature imaging using ultrasound.
abstract: We present a system for real-time 2D imaging of temperature change in tissue media using pulse-echo ultrasound. The frontend of the system is a SonixRP ultrasound scanner with a research interface giving us the capability of controlling the beam sequence and accessing radio frequency (RF) data in real-time. The beamformed RF data is streamlined to the backend of the system, where the data is processed using a two-dimensional temperature estimation algorithm running in the graphics processing unit (GPU). The estimated temperature is displayed in real-time providing feedback that can be used for real-time control of the heating source. Currently we have verified our system with elastography tissue mimicking phantom and in vitro porcine heart tissue, excellent repeatability and sensitivity were demonstrated.
authors: Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN 55455, USA. liuxx293@umn.edu
authors: Dalong
authors: D
authors: Liu
authors: Emad S
authors: ES
authors: Ebbini
mesh_terms: D000465:Algorithms; D001831:Body Temperature; D003952:Diagnostic Imaging / Q000379:methods; D004452:Echocardiography / Q000379:methods*; D054459:Elasticity Imaging Techniques / Q000379:methods; D001330:Electronic Data Processing; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods; D008279:Magnetic Resonance Imaging / Q000379:methods; D019047:Phantoms, Imaging; D013514:Surgical Procedures, Operative; D013696:Temperature; D013816:Thermodynamics