Quantifying cerebral hypoxia by near-infrared spectroscopy tissue oximetry: the role of arterial-to-venous blood volume ratio

MB Rasmussen, VR Eriksen… - … of biomedical optics, 2017 - spiedigitallibrary.org
… Thus, cerebral NIRS oximetry responded poorly to changes in tissue oxygenation during
hypotension induced by decreased preload. An increase in the AV-ratio during hypotension …

Three physiological components that influence regional cerebral tissue oxygen saturation

E Suppan, G Pichler, C Binder-Heschl… - Frontiers in …, 2022 - frontiersin.org
contribution to rcStO2 is commonly rounded to the 25:75 ratio, the largest in vivo study
conducted in neonates and young children showed an average, relatively constant ratio … A:V ratio

Correlation between cerebral tissue oxygen saturation and oxygen extraction fraction during anesthesia: monitoring cerebral metabolic demand-supply balance …

KU Koch, X Zhao, IK Mikkelsen… - Journal of …, 2023 - journals.lww.com
… of the type of cerebral oximeter we used in this study reflects extra-cerebral tissue layers.
Second, … Fourth, our sample size is relatively small which might have contributed to certain …

Compromised microvascular oxygen delivery increases brain tissue vulnerability with age

M Moeini, X Lu, PK Avti, R Damseh, S Bélanger… - Scientific reports, 2018 - nature.com
… Using a detailed investigation of the age-related changes in cerebral tissue oxygenation in
… a shift in the fractional contribution of arterioles and capillaries in tissue oxygenation towards …

The mass transfer coefficient for oxygen transport from blood to tissue in cerebral cortex

TW Secomb, KV Bullock, DA Boas… - Journal of Cerebral …, 2020 - journals.sagepub.com
… of oxygen dissolved in the tissue. However, the second contribution is relatively small for the
… If a rate of change of 1 mmHg/s is assumed, then the ratio of second contribution to the first …

[HTML][HTML] Modelling the effects of cerebral microvasculature morphology on oxygen transport

CS Park, SJ Payne - Medical engineering & physics, 2016 - Elsevier
tissue, MTT is the ratio of the cerebral blood volume (CBV) to CBF, with CBV being the volume
of blood per volume of tissue, … overall contribution determined by the product of the ratio of …

In vivo neurochemical measurements in cerebral tissues using a droplet-based monitoring system

G Petit-Pierre, P Colin, E Laurer, J Déglon… - Nature …, 2017 - nature.com
… a low amount of tissue damages in implanted tissues 15, 16 . … -tissue sections of brain (20−30
μm thick) which contributed to … However, the analysis based on thin-tissue brain sections …

[HTML][HTML] Validating faster DENSE measurements of cardiac-induced brain tissue expansion as a potential tool for investigating cerebral microvascular pulsations

AL Adams, MA Viergever, PR Luijten, JJM Zwanenburg - Neuroimage, 2020 - Elsevier
… Under the assumption of a fixed intracranial volume and the incompressible tissue constituents
of the cranial vault, we inferred a relatively small net contribution of the large intracranial …

Atherosclerosis is associated with a decrease in cerebral microvascular blood flow and tissue oxygenation

B Li, X Lu, M Moeini, S Sakadžić, E Thorin, F Lesage - PLoS One, 2019 - journals.plos.org
… wall PO 2 , thus contributing more to brain tissue oxygenation [41]. Next, we focused on the
relations between capillary wall PO 2 and RBC flow and diameter. It has been reported that …

Evaluation of a new brain tissue probe for intracranial pressure, temperature, and cerebral blood flow monitoring in patients with aneurysmal subarachnoid …

M Seule, C Sikorski, O Sakowitz, G von Campe… - Neurocritical care, 2016 - Springer
… performed daily for determination of cerebral blood flow (CBF), cerebral blood volume (CBV), …
tissue oxygen tension <20 mmHg and/or lactate/pyruvate ratio >35 obtained from cerebral