Finite element analysis of tissue deformation with a radiofrequency ablation electrode for strain imaging

Jingfeng Jiang, Tomy Varghese, Quan Chen, Timothy J. Hall, James A. Zagzebski

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Recent studies have shown that radiofrequency (RF) electrode displacement or deformation-based strain imaging can be used as an alternate imaging modality to monitor and to evaluate ablative therapies for liver tumors. This paper describes a biomechanical model used to study RF electrode deformation-based strain imaging, in conjunction with a simulated medical ultrasound linear array transducer. The computer simulations reported here are important steps toward understanding this biomechanical system in vivo, thus providing a basis for improving system design, including the motion tracking algorithm and image guidance for performing RF electrode displacement-strain imaging in vivo.

Original languageEnglish
Pages (from-to)281-288
Number of pages8
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Issue number2
StatePublished - Feb 2007

Bibliographical note

Funding Information:
Manuscript received July 25, 2005; accepted August 29, 2006. This work is supported in part by grants from NIH R01CA100373, NIH R21-EB002722, Whitaker Foundation RG-02-0457, and the University of Wisconsin-Madison. The authors are with the The University of Wisconsin-Madison, Madison, WI 53706 (e-mail: Digital Object Identifier 10.1109/TUFFC.2007.242

ASJC Scopus subject areas

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering


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