Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2022 Feb 16;12:2568. doi: 10.1038/s41598-022-06361-x

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Correlation between CSF and venous flow. Scatter plots show relation between C3-CSF v/s EV, C3-CSF v/s IJV, L3-CSF v/s EV, L3-CSF v/s IVC during normal breathing (left column) and forced breathing (middle column) for subject #1. Red lines represent the linear regression and ‘r’ is the correlation coefficient. Right column displays the Pearson’s correlation coefficient of all subjects and p-values of student’s t-tests. Significance is reached for C3-CSF v/s IJV and L3-CSF v/s IVC but not for C3-CSF v/s EV and L3-CSF v/s EV. C3 = cervical level 3, L3 = lumbar level 3, EV = epidural veins, IJV = internal jugular vein, IVC = inferior vena cava, Corr(r) = Pearson’s correlation coefficient, NB = normal breathing, FB = forced breathing, ns = not significant, Sub = subject.