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

. 2017 Dec 20;4(4):24. doi: 10.3390/jcdd4040024

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

© 2017 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Ultrasound imaging at HH24 demonstrates increased blood flow velocity in the OTB group. (A) B-mode ultrasound image of the HH24 chicken heart (hatched white box). Blood can be seen pumping from the ventricle (V) through the outflow tract (OFT). In this still-frame image, the OFT lumen (white) is surrounded by darker OFT cushions, comprised of cardiac jelly. Example blood flow velocity waveforms in the OFT obtained from (B) control and (C) OTB embryos. (D) Peak OFT velocity was significantly larger in OTB embryos. * p < 0.05 via t-test. (E) Plot of peak OFT blood flow velocity versus maximum diameter of the OFT at the constriction site in banded embryos (squares) or equivalent location in sham controls (open triangles) demonstrates the relationship between band tightness and peak velocity increase.