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 Feb 17;17(1):16. doi: 10.1186/s12968-015-0120-6

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

© Nielles-Vallespin et al.; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

PMC Copyright notice

Simulated off-resonance frequency response for SSFP protocols with a flip angle α = 8°, representing the low flip angle SSFP PD weighted acquisition, and a flip angle of α = 50°, as used in the high flip angle SSFP perfusion acquisition. The frequency response of the α = 50° protocol is quite flat over a range of ± 100 Hz, while the frequency response of the α = 8° protocol shows a deviation of 40% at ± 100 Hz. It can be observed that the banding artifacts, which occur due to off-resonance, exhibit much brighter edges at low flip angles than at high flip angles.