Real-time photo-magnetic imaging

Farouk Nouizi; Hakan Erkol; Alex Luk; Mehmet B Unlu; Gultekin Gulsen

doi:10.1364/BOE.7.003899

Real-time photo-magnetic imaging

Biomed Opt Express. 2016 Sep 6;7(10):3899-3904. doi: 10.1364/BOE.7.003899. eCollection 2016 Oct 1.

Authors

Farouk Nouizi¹, Hakan Erkol², Alex Luk³, Mehmet B Unlu⁴, Gultekin Gulsen³

Affiliations

¹ Tu and Yuen Center for Functional Onco-Imaging, Department of Radiological Sciences, University of California, Irvine, CA, USA.
² Tu and Yuen Center for Functional Onco-Imaging, Department of Radiological Sciences, University of California, Irvine, CA, USA; Department of Physics, Bogazici University, Bebek, 34342, Istanbul, Turkey.
³ Tu and Yuen Center for Functional Onco-Imaging, Department of Radiological Sciences, University of California, Irvine, CA, USA; Department of Biomedical Engineering, University of California, Irvine, CA, USA.
⁴ Department of Physics, Bogazici University, Bebek, 34342, Istanbul, Turkey.

Abstract

We previously introduced a new high resolution diffuse optical imaging modality termed, photo-magnetic imaging (PMI). PMI irradiates the object under investigation with near-infrared light and monitors the variations of temperature using magnetic resonance thermometry (MRT). In this paper, we present a real-time PMI image reconstruction algorithm that uses analytic methods to solve the forward problem and assemble the Jacobian matrix much faster. The new algorithm is validated using real MRT measured temperature maps. In fact, it accelerates the reconstruction process by more than 250 times compared to a single iteration of the FEM-based algorithm, which opens the possibility for the real-time PMI.

Keywords: (110.6960) Tomography; (170.3010) Image reconstruction techniques.

Abstract

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