Deep learning methods hold promise for light fluence compensation in three-dimensional optoacoustic imaging
Madasamy A, Gujrati V, Ntziachristos V, Prakash J (2022)
Publication Type: Journal article
Publication year: 2022
Journal
Book Volume: 27
Journal Issue: 10
DOI: 10.1117/1.JBO.27.10.106004
Abstract
SIGNIFICANCE: Quantitative optoacoustic imaging (QOAI) continues to be a challenge due to the influence of nonlinear optical fluence distribution, which distorts the optoacoustic image representation. Nonlinear optical fluence correction in OA imaging is highly ill-posed, leading to the inaccurate recovery of optical absorption maps. This work aims to recover the optical absorption maps using deep learning (DL) approach by correcting for the fluence effect. AIM: Different DL models were compared and investigated to enable optical absorption coefficient recovery at a particular wavelength in a nonhomogeneous foreground and background medium. APPROACH: Data-driven models were trained with two-dimensional (2D) Blood vessel and three-dimensional (3D) numerical breast phantom with highly heterogeneous/realistic structures to correct for the nonlinear optical fluence distribution. The trained DL models such as U-Net, Fully Dense (FD) U-Net, Y-Net, FD Y-Net, Deep residual U-Net (Deep ResU-Net), and generative adversarial network (GAN) were tested to evaluate the performance of optical absorption coefficient recovery (or fluence compensation) with in-silico and in-vivo datasets. RESULTS: The results indicated that FD U-Net-based deconvolution improves by about 10% over reconstructed optoacoustic images in terms of peak-signal-to-noise ratio. Further, it was observed that DL models can indeed highlight deep-seated structures with higher contrast due to fluence compensation. Importantly, the DL models were found to be about 17 times faster than solving diffusion equation for fluence correction. CONCLUSIONS: The DL methods were able to compensate for nonlinear optical fluence distribution more effectively and improve the optoacoustic image quality.
Involved external institutions
Indian Institute of Science (IISc)
India (IN)
Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt (HMGU) / Helmholtz Munich
Germany (DE)
India (IN)
Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt (HMGU) / Helmholtz Munich
Germany (DE)
How to cite
APA:
Madasamy, A., Gujrati, V., Ntziachristos, V., & Prakash, J. (2022). Deep learning methods hold promise for light fluence compensation in three-dimensional optoacoustic imaging. Journal of Biomedical Optics, 27(10). https://doi.org/10.1117/1.JBO.27.10.106004
MLA:
Madasamy, Arumugaraj, et al. "Deep learning methods hold promise for light fluence compensation in three-dimensional optoacoustic imaging." Journal of Biomedical Optics 27.10 (2022).
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