Gradient Echo Pulse Sequence in Magnetic Resonance Imaging

Initializing live version
Download to Desktop

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.

This Demonstration shows a spoiled gradient echo pulse sequence from a magnetic resonance imaging (MRI). The "repetition time" (in seconds) and "flip angle" are parameters that can be controlled on an MRI machine to yield scans with different contrast between tissues. This Demonstration examines an image of the brain with the tissues: cerebrospinal fluid, gray matter, white matter, fat, muscle, skin, dura, marrow and vessels at a magnetic field of 3.0 T.

Contributed by: Yiling Hu (August 2022)
Open content licensed under CC BY-NC-SA




[1] L. Collins. "Colin 27 Average Brain 2008." McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University. (Sep 7, 2021)

[2] "Tissue Properties: Relaxation Times." IT'IS Foundation. (Sep 7, 2021)

[3] J. P. Hornak, The Basics of MRI, Chapter 10. (Sep 7, 2021)

[4] D. W. McRobbie, E. A. Moore, M. J. Graves and M. R. Prince, MRI from Picture to Proton, New York: Cambridge University Press, 2007.

Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.