Optimization and real-time control for laser treatment of heterogeneous soft tissues

Yusheng Feng, David Fuentes, Andrea Hawkins, Jon M. Bass, Marissa Nichole Rylander

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Predicting the outcome of thermotherapies in cancer treatment requires an accurate characterization of the bioheat transfer processes in soft tissues. Due to the biological and structural complexity of tumor (soft tissue) composition and vasculature, it is often very difficult to obtain reliable tissue properties that is one of the key factors for the accurate treatment outcome prediction. Efficient algorithms employing in vivo thermal measurements to determine heterogeneous thermal tissues properties in conjunction with a detailed sensitivity analysis can produce essential information for model development and optimal control. The goals of this paper are to present a general formulation of the bioheat transfer equation for heterogeneous soft tissues, review models and algorithms developed for cell damage, heat shock proteins, and soft tissues with nanoparticle inclusion, and demonstrate an overall computational strategy for developing a laser treatment framework with the ability to perform real-time robust calibrations and optimal control. This computational strategy can be applied to other thermotherapies using the heat source such as radio frequency or high intensity focused ultrasound.

Original languageEnglish (US)
Pages (from-to)1742-1750
Number of pages9
JournalComputer Methods in Applied Mechanics and Engineering
Volume198
Issue number21-26
DOIs
StatePublished - May 1 2009
Externally publishedYes

Keywords

  • Bioheat transfer model
  • Nanoparticle inclusion
  • Nonlinearity
  • Parallel computing
  • Parameter estimation
  • Soft tissue properties

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • General Physics and Astronomy
  • Computer Science Applications

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