Photo of Martin Hultman

Martin Hultman

Assistant Professor

I research the microcirculation, the smallest blood vessels in the body. I develop new methods for imaging the microvascular function, specifically by using image processing and machine learning implemented in programmable logic hardware (FPGA).

Optical imaging of the microvascular function

There are many methods for imaging different aspects of the microcirculation. My focus is on two such methods, MELSCI (multi-exposure laser speckle contrast imaging) for blood flow and MSI (multi-spectral imaging) for oxygen saturation, and how these techniques can be combined to get a more comprehensive view of the microvascular function.

By using model-based analysis of the image data, machine learning methods, as well as implementations in programmable logic hardware, my goal is to make these methods faster, more efficient, and more robust. Through close collaboration with both industry and healthcare, I aim to enable the clinical implementation of these techniques, where they in the future can benefit patients with, for example, diabetes, sepsis, non-healing wounds, and chronic ischemia.

Education:

  • PhD in biomedical engineering sciences from Linköping University (2022)
  • MSc in applied physics and electrical engineering, with specialization "system on chip", from Linköping University (2016)

Publications

2025

Moa Nilsson, Martin Hultman, Freya Mariann Richter, Joakim Henricson, Marcus Larsson, Tomas Strömberg, Ingemar Fredriksson, Fredrik Iredahl (2025) Day-to-day variability in cutaneous microcirculation measured with multi-exposure laser speckle contrast imaging and multispectral imaging Microvascular Research, Vol. 160, Article 104819 (Article in journal) Continue to DOI

2024

Lana Kralj, Martin Hultman, Helena Lenasi (2024) Wavelet Analysis and the Cone of Influence: Does the Cone of Influence Impact Wavelet Analysis Results? Applied Sciences, Vol. 14, Article 11736 (Article in journal) Continue to DOI
Johannes Johansson, Martin Hultman, Rolf Saager (2024) Coagulation depth estimation using a line scanner for depth-resolved laser speckle contrast imaging Biomedical Optics Express, Vol. 15, p. 4486-4497 (Article in journal) Continue to DOI
Martin Hultman, Freya Richter, Marcus Larsson, Tomas Strömberg, Fredrik Iredahl, Ingemar Fredriksson (2024) Robust analysis of microcirculatory flowmotion during post-occlusive reactive hyperemia Microvascular Research, Vol. 155, Article 104715 (Article in journal) Continue to DOI

2023

Martin Hultman, Marcus Larsson, Tomas Strömberg, Ingemar Fredriksson (2023) Speed-resolved perfusion imaging using multi-exposure laser speckle contrast imaging and machine learning Journal of Biomedical Optics, Vol. 28, Article 036007 (Article in journal) Continue to DOI

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