The lab profile on Facebook

We develop methods and devices for measuring oxygenation and haemodynamics of tissues.

Please follow the links to the ORCID database next to the lab members and the lab's profile on the Facebook platform to keep up to date with the lab's latest work and publications.

The team:

• Dr inz. Stanislaw Wojtkiewicz - Head of the lab
• Prof. dr hab. inz. Adam Liebert
• Prof. dr hab. inz. Roman Maniewski
• Dr hab. inz. Piotr Sawosz
• Dr Sara Fathollah
• Dr Anna Gerega
• Dr inz. Michal Kacprzak
• Dr Aleh Sudakou
• mgr inz. Karolina Bejm (doktorantka)
• mgr Neda Mogharari (doktorantka)

Former lab members:

• Dr Saeed Samaei
• Dr inz. Daniel Milej
• Dr inz. Beata Toczylowska
• Dr Norbert Żołek
• Dr inz. Michal Kania
• Dr Malgorzata Fereniec

Research subjects:

Our activities are interdisciplinary and cover the full path from the idea and development of a theoretical physical description through its hardware and algorithmic implementation and culminate in testing on an animal model and on healthy volunteers and patients in a clinical setting.

Selected examples of applications of ongoing research activities:

• Non-invasive, optical devices based on near-infrared spectroscopy technique for the diagnosis of strokes, intracranial bleeding, intraoperative monitoring of cerebral oxygenation (e.g. carotid artery clog removal), detection of brain death, etc..
• Non-invasive imaging of cerebral cortex activity during movement or viewing of visual stimuli, also under oxygen deprivation or high g-force overload conditions.
• Non-invasive monitoring of muscle oxygenation during exercise.
• Non-contact, non-invasive monitoring of wound healing using the correlative speckle field imaging technique.
• Non-invasive monitoring of cerebral flow by diffuse correlation spectroscopy technique.
• Optical measurement of systolic and diastolic blood pressure.
• Tools for modelling light propagation in tissues that, when applied to a measurement method, allow for recovery of information on the oxygenation or blood supply of the tissue, e.g. “Parallel, multi-purpose Monte Carlo code for simulation of light propagation in segmented tissues” (https://github.com/swojtkiewicz/mc_cuda_ompi) or “Two-layered blood-lipid phantom and method to determine absorption and oxygenation employing changes in moments of DTOFs” (https://github.com/asudakou/Analyzing_TD-NIRS).

Research field description:

The Biomedical Optics Laboratory carries out research work in the field of medical diagnostic techniques based on phenomena related to the interaction of near-infrared light with tissues. In particular, these include measurement methods of haemodynamic parameters of tissues based on near-infrared spectroscopy and dynamic light scattering on red blood cells.

Selected measurement techniques and methods used in the laboratory:

• Near-infrared spectroscopy NIRS (https://en.wikipedia.org/wiki/Near-infrared_spectroscopy)
• Time-resolved near-infrared spectroscopy TR-NIRS (https://en.wikipedia.org/wiki/Time-domain_diffuse_optics)
• Diffuse correlation spectroscopy (https://en.wikipedia.org/wiki/Diffuse_correlation_spectrometry)
• Laser speckle contrast imaging (https://en.wikipedia.org/wiki/Laser_speckle_contrast_imaging)

Keywords:

NIRS, biomedical optics, near-infrared spectroscopy, measurements of mean time of flight of photons, diffuse optical tomography, diffuse correlation spectroscopy, dynamic imaging of speckle fields

Publications:

To see up to date publications from our lab members, visit our Google Scholar profile.