A wavelet scattering convolutional network for magnetic resonance spectroscopy signal quantitation

0544182 - ÚPT 2022 RIV PT eng C - Conference Paper (international conference)
Shamaei, Amirmohammad - Starčuková, Jana - Starčuk jr., Zenon
A wavelet scattering convolutional network for magnetic resonance spectroscopy signal quantitation.
Proceedings of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies. Vol. 4. Setúbal: SciTePress, 2021 - (Bracken, B.; Fred, A.; Gamboa, H.), (2021), s. 268-275. Biostec. ISBN 978-989-758-490-9.
[International Conference on Bio-inspired Systems and Signal Processing /14./ Biosignals 2021, Part of the International Joint Conference on Biomedical Engineering Systems and Technologies /14./ Biostec 2021. online (PT), 11.02.2021-13.02.2021]
R&D Projects: GA MŠMT(CZ) EF16_013/0001775
EU Projects: European Commission(XE) 813120 - INSPiRE-MED
Institutional support: RVO:68081731
Keywords : magnetic resonance spectroscopy * quantification * deep learning * machine learning
OECD category: Medical engineering
https://www.scitepress.org/Link.aspx?doi=10.5220/0010318502680275

Magnetic resonance spectroscopy (MRS) can provide quantitative information about local metabolite concentrations in living tissues, but in practice the quantification can be difficult. Recently deep learning (DL) has been used for quantification of MRS signals in the frequency domain, and DL combined with time-frequency analysis for artefact detection in MRS. The networks most widely used in previous studies were Convolutional Neural Networks (CNN). Nonetheless, the optimal architecture and hyper-parameters of the CNN for MRS are not well understood, CNN has no knowledge about the nature of the MRS signal and its training is computationally expensive. On the other hand, Wavelet Scattering Convolutional Network (WSCN) is well-understood and computationally cheap. In this study, we found that a wavelet scattering network could hopefully be also used for metabolite quantification. We showed that a WSCN could yield results more robust than QUEST (one of quantitation methods based on model fitting) and the same as a CNN while being faster, We used wavelet scattering transform to extract features from the MRS signal, and a superficial neural network implementation to predict metabolite concentrations. Effects of phase, noise, and macromolecules variation on the WSCN estimation accuracy were also investigated.
Permanent Link: http://hdl.handle.net/11104/0321308