Near-infrared light propagation in an adult head model. II. Effect of superficial tissue thickness on the sensitivity of the near-infrared spectroscopy signal

E Okada, DT Delpy - Applied optics, 2003 - opg.optica.org
It is important for near-infrared spectroscopy (NIRS) and imaging to estimate the sensitivity of
the detected signal to the change in hemoglobin that results from brain activation and the …

Multi-layered tissue head phantoms for noninvasive optical diagnostics

MS Wróbel, AP Popov, AV Bykov… - Journal of Innovative …, 2015 - World Scientific
Extensive research in the area of optical sensing for medical diagnostics requires
development of tissue phantoms with optical properties similar to those of living human …

Impact of slow breathing on the blood pressure and subarachnoid space width oscillations in humans

MK Nuckowska, M Gruszecki, J Kot, J Wolf… - Scientific reports, 2019 - nature.com
The aim of the study was to assess cardiac and respiratory blood pressure (BP) and
subarachnoid space (SAS) width oscillations during the resting state for slow and fast …

Influence of acute jugular vein compression on the cerebral blood flow velocity, pial artery pulsation and width of subarachnoid space in humans

AF Frydrychowski, PJ Winklewski, W Guminski - PloS one, 2012 - journals.plos.org
Purpose The aim of this study was to assess the effect of acute bilateral jugular vein
compression on:(1) pial artery pulsation (cc-TQ);(2) cerebral blood flow velocity (CBFV);(3) …

Oscillations of subarachnoid space width as a potential marker of cerebrospinal fluid pulsatility

M Gruszecki, MK Nuckowska, A Szarmach… - Progress in Medical …, 2018 - Springer
In the cerebrospinal fluid (CSF) circulation, two components can be distinguished: bulk flow
(circulation) and pulsatile flow (back and forth motion). CSF pulsatile flow is generated by …

Human subarachnoid space width oscillations in the resting state

M Gruszecki, G Lancaster, A Stefanovska, JP Neary… - Scientific Reports, 2018 - nature.com
Abnormal cerebrospinal fluid (CSF) pulsatility has been implicated in patients suffering from
various diseases, including multiple sclerosis and hypertension. CSF pulsatility results in …

Subarachnoid space: new tricks by an old dog

AF Frydrychowski, A Szarmach, B Czaplewski… - PloS one, 2012 - journals.plos.org
Purpose The purpose of the study was to:(1) evaluate the subarachnoid space (SAS) width
and pial artery pulsation in both hemispheres, and (2) directly compare magnetic resonance …

Technical foundations for noninvasive assessment of changes in the width of the subarachnoid space with near-infrared transillumination-backscattering sounding …

AF Frydrychowski, W Guminski… - IEEE transactions on …, 2002 - ieeexplore.ieee.org
This paper presents technical foundations for a new technique of near-infrared
transillumination-backscattering sounding, which is designed to enable noninvasive …

Applications of near-infrared spectroscopy in medical sciences

HM Heise - Near-infrared spectroscopy, 2002 - Wiley Online Library
Near-infrared spectroscopy has found many applications, which are described in part in
other chapters of this book. For chemical quality and process control, nearinfrared …

[HTML][HTML] Coupling between blood pressure and subarachnoid space width oscillations during slow breathing

A Gruszecka, MK Nuckowska, M Waskow, J Kot… - Entropy, 2021 - mdpi.com
The precise mechanisms connecting the cardiovascular system and the cerebrospinal fluid
(CSF) are not well understood in detail. This paper investigates the couplings between the …