Deep Learning Improves Contrast in Low-Fluence Photoacoustic Imaging

• URL: http://arxiv.org/abs/2004.08782v1
• Date: Sun, 19 Apr 2020 07:06:02 GMT
• Title: Deep Learning Improves Contrast in Low-Fluence Photoacoustic Imaging
• Authors: Ali Hariri, Kamran Alipour, Yash Mantri, Jurgen P. Schulze, and Jesse V. Jokerst
• Abstract summary: Low fluence illumination sources can facilitate clinical transition of photoacoustic imaging because they are rugged, portable, affordable, and safe. Here, we propose a denoising method using a multi-level wavelet-convolutional neural network to map low fluence illumination source images to its corresponding high fluence excitation map.
• Score: 0.7046417074932257
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Low fluence illumination sources can facilitate clinical transition of photoacoustic imaging because they are rugged, portable, affordable, and safe. However, these sources also decrease image quality due to their low fluence. Here, we propose a denoising method using a multi-level wavelet-convolutional neural network to map low fluence illumination source images to its corresponding high fluence excitation map. Quantitative and qualitative results show a significant potential to remove the background noise and preserve the structures of target. Substantial improvements up to 2.20, 2.25, and 4.3-fold for PSNR, SSIM, and CNR metrics were observed, respectively. We also observed enhanced contrast (up to 1.76-fold) in an in vivo application using our proposed methods. We suggest that this tool can improve the value of such sources in photoacoustic imaging.

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