Open AccessReal-time photo-magnetic imaging
Author(s) -
Farouk Nouizi,
Hakan Erkol,
Alex Luk,
Mehmet Ünlü,
Gültekin Gülşen
Publication year - 2016
Publication title -
biomedical optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.7.003899
Subject(s) - jacobian matrix and determinant , computer science , magnetic resonance imaging , diffuse optical imaging , iterative reconstruction , image resolution , modality (human–computer interaction) , computer vision , process (computing) , optics , artificial intelligence , algorithm , physics , mathematics , medicine , radiology , operating system
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.