A single simulation platform for hybrid photoacoustic and RF-acoustic computed tomography

Christopher Fadden, Sri Rajasekhar Kothapalli

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In recent years, multimodal thermoacoustic imaging has demonstrated superior imaging quality compared to other emerging modalities. It provides functional and molecular information, arising due to electromagnetic absorption contrast, at ultrasonic resolution using inexpensive and non-ionizing imaging methods. The development of optical- as well as radio frequency (RF)-induced thermoacoustic imaging systems would benefit from reliable numerical simulations. To date, most numerical models use a combination of different software in order to model the hybrid thermoacoustic phenomenon. Here, we demonstrate the use of a single open source finite element software platform (ONELAB) for photo- and RF-acoustic computed tomography. The solutions of the optical diffusion equation, frequency domain Maxwell's equations, and time-domain wave equation are used to solve the optical, electromagnetic, and acoustic propagation problems, respectively, in ONELAB. The results on a test homogeneous phantom and an approximate breast phantom confirm that ONELAB is a very effective software for both photo- and RF-acoustic simulations, and invaluable for developing new reconstruction algorithms and hardware systems.

Original languageEnglish (US)
Article number1568
JournalApplied Sciences (Switzerland)
Volume8
Issue number9
DOIs
StatePublished - Sep 6 2018

Fingerprint

Thermoacoustics
Photoacoustic effect
Tomography
radio frequencies
platforms
tomography
Acoustics
computer programs
Imaging techniques
acoustics
Electromagnetic wave absorption
electromagnetic wave transmission
acoustic simulation
acoustic propagation
simulation
Maxwell equations
Wave equations
electromagnetic absorption
breast
Maxwell equation

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Instrumentation
  • Engineering(all)
  • Process Chemistry and Technology
  • Computer Science Applications
  • Fluid Flow and Transfer Processes

Cite this

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A single simulation platform for hybrid photoacoustic and RF-acoustic computed tomography. / Fadden, Christopher; Kothapalli, Sri Rajasekhar.

In: Applied Sciences (Switzerland), Vol. 8, No. 9, 1568, 06.09.2018.

Research output: Contribution to journalArticle

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