Version 1
: Received: 26 March 2024 / Approved: 27 March 2024 / Online: 27 March 2024 (06:39:14 CET)
How to cite:
Simka, M.; Czaja, J.; Kawalec, A.; Latacz, P.; Kovalko, U. Numerical Modeling of the Venous Outflow from the Cranial Cavity in the Supine Body Position. Preprints2024, 2024031639. https://doi.org/10.20944/preprints202403.1639.v1
Simka, M.; Czaja, J.; Kawalec, A.; Latacz, P.; Kovalko, U. Numerical Modeling of the Venous Outflow from the Cranial Cavity in the Supine Body Position. Preprints 2024, 2024031639. https://doi.org/10.20944/preprints202403.1639.v1
Simka, M.; Czaja, J.; Kawalec, A.; Latacz, P.; Kovalko, U. Numerical Modeling of the Venous Outflow from the Cranial Cavity in the Supine Body Position. Preprints2024, 2024031639. https://doi.org/10.20944/preprints202403.1639.v1
APA Style
Simka, M., Czaja, J., Kawalec, A., Latacz, P., & Kovalko, U. (2024). Numerical Modeling of the Venous Outflow from the Cranial Cavity in the Supine Body Position. Preprints. https://doi.org/10.20944/preprints202403.1639.v1
Chicago/Turabian Style
Simka, M., Paweł Latacz and Uliana Kovalko. 2024 "Numerical Modeling of the Venous Outflow from the Cranial Cavity in the Supine Body Position" Preprints. https://doi.org/10.20944/preprints202403.1639.v1
Abstract
Hemodynamic relevance of differently located stenoses of the internal jugular veins remains undetermined. It particularly concerns nozzle-like strictures in the upper parts of these veins and stenotic jugular valves located at the end of this vein. This study was aimed at understanding flow disturbances caused by such stenoses. Computational fluid dynamics software, Flowsquare+, was used. We constructed 3-dimensional models of venous outflow, comprising two alternative routes: tube representing the internal jugular vein and irregular network representing the vertebral veins. At the beginning of the tube representing the internal jugular vein, differently-shaped and sized short strictures, representing nozzle-like strictures were built in. At the end of this tube, differently-shaped membranes, representing the jugular valve, were built in. With the use of computational fluid dynamics modeling, we studied how these two obstacles influenced the outflow. We found that the most relevant outflow disturbances were evoked by nozzle-like strictures in the upper part of the internal jugular vein that were either small, long or asymmetrically positioned. Very tight stenotic valves and septum-like malformed valve were equally hemodynamically relevant. These findings suggest that both upper and lower strictures of the internal jugular vein can be of clinical significance.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
