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

. 2019 Feb 21;10:99. doi: 10.3389/fphys.2019.00099

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

Copyright © 2019 Lawton, Lee, Saunter, Girkin, McCarron and Wilson.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

Algorithmic determination of inner and out diameter of pressurized blood vessels. (A) Schematic diagram (cross-sectional view, top) of an artery, idealized intensity profile (middle), and the first derivative of the idealized intensity profile (bottom) illustrating how peaks in the derivative profile may be used to identify the edges of an artery. (B,C) Real-data examples illustrating the algorithm. The top panels show a first-order mesenteric artery (male rat), pressurized to 80 mmHg, in the absence (B) and presence (C) of the α-adrenergic agonist, phenylephrine (1 μM). Scale bars = 100 μm.