King's College London

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Dr Samuel Powell

  1. A wide field-of-view, modular, high-density diffuse optical tomography system for minimally constrained three-dimensional functional neuroimaging

    Zhao, H., Brigadoi, S., Chitnis, D., de Vita, E., Castellaro, M., Powell, S., Everdell, N. L. & Cooper, R. J., 1 Aug 2020, In : Biomedical Optics Express. 11, 8, p. 4110-4129 20 p.

    Research output: Contribution to journalArticle

  2. Three-dimensional quantitative photoacoustic tomography using an adjoint radiance Monte Carlo model and gradient descent

    Buchmann, J., Kaplan, B., Powell, S., Prohaska, S., Laufer, J. & Kaplan, B. A., 30 Jun 2019, In : Journal of Biomedical Optics. 24, 6, p. 1-13 13 p., 066001.

    Research output: Contribution to journalArticle

  3. A pseudospectral method for solution of the radiative transport equation

    Powell, S., Cox, B. & Arridge, S., 1 May 2019, In : JOURNAL OF COMPUTATIONAL PHYSICS. 384, p. 376-382 7 p.

    Research output: Contribution to journalArticle

  4. A dual-wavelength spread spectrum-based spectroscopic system for time-domain near-infrared diffuse optical imaging

    Papadimitriou, K. I., Hebden, J. C., Arridge, S. R. & Powell, S., 1 Mar 2019, In : Proceedings of SPIE . 10874, Optical Tomography and Spectroscopy of Tissue XIII, 1087421.

    Research output: Contribution to journalConference paper

  5. Dynamic causal modelling on infant fNIRS data: A validation study on a simultaneously recorded fNIRS-fMRI dataset

    Bulgarelli, C., Blasi, A., Arridge, S., Powell, S., de Klerk, C., Southgate, V., Brigadoi, S., Penny, W., Tak, S. & Hamilton, A., 15 Jul 2018, In : NeuroImage. 175, p. 413-424

    Research output: Contribution to journalArticle

  6. A spread spectrum approach to time-domain near-infrared diffuse optical imaging using inexpensive optical transceiver modules

    Papadimitriou, K., Dempsey, L., Hebden, J., Arridge, S. & Powell, S., 1 Jun 2018, In : Biomedical Optics Express. 9, 6, p. 2648-2663

    Research output: Contribution to journalArticle

  7. Image reconstruction of oxidized cerebral cytochrome C oxidase changes from broadband near-infrared spectroscopy data

    Brigadoi, S., Phan, P., Highton, D., Powell, S., Cooper, R., Hebden, J., Smith, M., Tachtsidis, I., Elwell, C. & Gibson, A., 24 May 2017, In : Neurophotonics.

    Research output: Contribution to journalArticle

  8. Geometrically complex 3D-printed phantoms for diffuse optical imaging

    Dempsey, L., Persad, M., Powell, S., Chitnis, D. & Hebden, J., 1 Mar 2017, In : Biomedical Optics Express. p. 1754-1762

    Research output: Contribution to journalArticle

  9. Quantitative photoacoustic tomography using forward and adjoint Monte Carlo models of radiance

    Hochuli, R., Powell, S., Arridge, S. & Cox, B., 2 Dec 2016, In : Journal of Biomedical Optics.

    Research output: Contribution to journalArticle

  10. Functional imaging of the human brain using a modular, fibre-less, high-density diffuse optical tomography system

    Chitnis, D., Cooper, R., Dempsey, L., Powell, S., Quaggia, S., Highton, D., Elwell, C., Hebden, J. & Everdell, N., 1 Oct 2016, In : Biomedical Optics Express.

    Research output: Contribution to journalArticle

  11. Towards a wearable near infrared spectroscopic probe for monitoring concentrations of multiple chromophores in biological tissue in vivo

    Chitnis, D., Airantzis, D., Highton, D., Williams, R., Phan, P., Giagka, V., Powell, S., Powell, S., Cooper, R., Tachtsidis, I., Smith, M., Elwell, C., Hebden, J. & Everdell, N., 28 Jun 2016, In : Rev. Sci. Instrum..

    Research output: Contribution to journalArticle

  12. Evaluating real-time image reconstruction in diffuse optical tomography using physiologically realistic test data

    Brigadoi, S., Powell, S., Cooper, R., Dempsey, L., Arridge, S., Everdell, N., Hebden, J. C. & Gibson, A., 1 Dec 2015, In : Biomedical Optics Express. 6, 12

    Research output: Contribution to journalArticle

  13. Reconstruction-classification method for quantitative photoacoustic tomography

    Malone, E., Powell, S., Cox, B. & Arridge, S., Dec 2015, In : Journal of Biomedical Optics. 20, 12

    Research output: Contribution to journalArticle

  14. Data-driven approach to optimum wavelength selection for diffuse optical imaging

    Dempsey, L., Cooper, R., Roque, T., Matias Correia, T. M., Magee, E., Powell, S., Gibson, A. & Hebden, J. C., 1 Nov 2015, In : Journal of Biomedical Optics. 20, 1

    Research output: Contribution to journalArticle

  15. Fast Monte Carlo simulations of ultrasound-modulated light using a graphics processing unit

    Leung, T. & Powell, S., 1 Sep 2010, In : Journal of Biomedical Optics. 15, 5

    Research output: Contribution to journalArticle

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