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

. 2018 May 8;2018:5360375. doi: 10.1155/2018/5360375

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

Copyright © 2018 Amirah Alsaedi et al.

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

A drawing showing the flow-sensitive inversion pulse (FAIR) mechanism. A labelling image is acquired using a large inversion slab, (a) during application of the nonselective slice pulse; (b) the tagged image is obtained after a delay time (TI) and contains tagged flowing spins from arteries and veins. A control image is acquired using the same inversion pulse in a slice-selective (a). The slice selected is larger than the image slice (b). The control image is obtained after TI. The ASL difference image (control−label) shows the tagged venous spins as bright signals. Static tissue spins are shown as green arrows and tagged blood water as blue arrows.