paMELA - Photoacoustic Melanoma Detector Design for Real-Time Imaging of Melanin with 18 db SNR and 10 μm Precision

Elia Vallicelli, Giberto Chirico, Oliver Cosmi, Lorenzo Stevenazzi, Mattia Tambaro

2022

Abstract

This article presents the complete photon-to-bit cross-domain model of a photoacoustic melanoma detector (paMELA), consisting of a pulsed laser, a multichannel acoustic sensor, an analog front-end and a DSP stage for the implementation of an acoustic imaging algorithm. The photoacoustic effect can be exploited to obtain complementary information on a suspected melanoma with respect to classical dermatoscopic techniques. By modelling the physical phenomena (generation and propagation of the acoustic signal), electromechanical process (pressure-voltage transduction by the acoustic sensor), the analog and digital signal processing, it is possible to evaluate the impact of each stage on the quality of the final image. Finally, the simulation results of paMELA allow to evaluate the performance of the detector in terms of localization precision and signal-to-noise ratio, using both a single point-like source and a complete biological tissue phantom with different sources sizes and features, obtaining 18 dB of SNR and 10 μm of precision in 1s acquisition.

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Paper Citation


in Harvard Style

Vallicelli E., Chirico G., Cosmi O., Stevenazzi L. and Tambaro M. (2022). paMELA - Photoacoustic Melanoma Detector Design for Real-Time Imaging of Melanin with 18 db SNR and 10 μm Precision. In Proceedings of the 15th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES, ISBN 978-989-758-552-4, pages 102-108. DOI: 10.5220/0011013000003123


in Bibtex Style

@conference{biodevices22,
author={Elia Vallicelli and Giberto Chirico and Oliver Cosmi and Lorenzo Stevenazzi and Mattia Tambaro},
title={paMELA - Photoacoustic Melanoma Detector Design for Real-Time Imaging of Melanin with 18 db SNR and 10 μm Precision},
booktitle={Proceedings of the 15th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES,},
year={2022},
pages={102-108},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011013000003123},
isbn={978-989-758-552-4},
}


in EndNote Style

TY - CONF

JO - Proceedings of the 15th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES,
TI - paMELA - Photoacoustic Melanoma Detector Design for Real-Time Imaging of Melanin with 18 db SNR and 10 μm Precision
SN - 978-989-758-552-4
AU - Vallicelli E.
AU - Chirico G.
AU - Cosmi O.
AU - Stevenazzi L.
AU - Tambaro M.
PY - 2022
SP - 102
EP - 108
DO - 10.5220/0011013000003123