Ultrasound simulation of real-time temperature estimation during radiofrequency ablation using finite element models.

ABSTRACT: Radiofrequency ablation is the most common minimally invasive therapy used in the United States to treat hepatocellular carcinoma and liver metastases. The ability to perform real-time temperature imaging while a patient is undergoing ablation therapy may help reduce the high recurrence rates following ablation therapy. Ultrasound echo signals undergo time shifts with increasing temperature due to sound speed and thermal expansion, which are tracked using both 1D cross correlation and 2D block matching based speckle tracking methods. In this paper, we present a quantitative evaluation of the accuracy and precision of temperature estimation using the above algorithms on both simulated and experimental data. A finite element analysis simulation of radiofrequency ablation of hepatic tissue wa

SUBMITTER: Daniels MJ 

PROVIDER: S-EPMC2777513 | biostudies-literature | 2008 Mar

REPOSITORIES: biostudies-literature