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

. 2015 Dec;5(4):658–666. doi: 10.1086/683697

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

© 2015 by the Pulmonary Vascular Research Institute. All rights reserved.

For permission to reuse, contact journalpermissions@press.uchicago.edu.

PMC Copyright notice

Relationship between estimated characteristic impedance (Z_c) and right heart catheterization measured afterload and N-terminal prohormone B-type natriuretic peptide (NT-proBNP) expression (, by two-tailed test). Z_c appears to reflect both the reactive and resistive components of afterload and is increasing concurrently with NT-proBNP expression. C: capitance; PVR: pulmonary vascular resistance.

Inline graphic — Relationship between estimated characteristic impedance (Z_c) and right heart catheterization measured afterload and N-terminal prohormone B-type natriuretic peptide (NT-proBNP) expression (, by two-tailed test). Z_c appears to reflect both the reactive and resistive components of afterload and is increasing concurrently with NT-proBNP expression. C: capitance; PVR: pulmonary vascular resistance.