Magnetic Resonance Imaging (MRI)

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.

The process of signal generation and acquisition in magnetic resonance imaging consists of four stages.


1. The magnetic gradient along the axis selects a slice of the object. The protons in this slice are excited by a radiofrequency pulse.

2. The magnetic gradient along the axis achieves phase encoding of the protons in the selected slice.

3. The magnetic gradient along the axis produces a frequency encoding.

4. The signals emitted by the protons are detected, and an image of the object is synthesized by a computer program.


Contributed by: Yuncong Ma (March 2014)
Open content licensed under CC BY-NC-SA




[1] S. A. Huettel, A. W. Song, and G. McCarthy, Functional Magnetic Resonance Imaging, 2nd revised ed., Sunderland, MA: Sinauer Associates Inc., 2008.

[2] Wikipedia. "Basic Physics of Nuclear Medicine/MRI & Nuclear Medicine." (Mar 11, 2014) _Nuclear _Medicine/MRI_%26 _Nuclear _Medicine.

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.