How MRI works

Within the MAGNET4Cardiac7T Project we try to simulate what happens inside a 7T MRI Scanner. Read on to learn how MRI technology works in general.

Fig.1 - Diagram of changing magnetization and spin orientations throughout spin-lattice relaxation experiment.
Figure created by Sea438 CC BY-SA 4.0

MRI technology

Magnetic Resonance Imaging (MRI) is a non-invasive imaging technique used to visualize detailed internal structures of the body. It utilizes strong magnetic fields and radio waves to generate images of organs and tissues. The process begins with the alignment of hydrogen protons in the body using a powerful magnet. Radiofrequency pulses are then applied to disturb this alignment, causing the protons to emit signals as they return to their original state. These signals are captured by the MRI scanner and processed to create detailed cross-sectional images. MRI is particularly useful for imaging soft tissues, such as the brain, muscles, and heart, providing high-resolution images without the use of ionizing radiation. Advanced MRI techniques can also provide functional information, such as blood flow and metabolic activity. This technology is essential in diagnosing and monitoring various medical conditions, including tumors, neurological disorders, and cardiovascular diseases.

Educational Video

You can learn more about MRI technology from the following video: