In clinical and research MRI, hydrogen atoms are most often used to generate a detectable radio-frequency signal that is received by antennas close to the anatomy being examined. Hydrogen …

Sep 16, 2025 · The physics of MRI are complicated and much harder to understand than those underpinning image generation in plain radiography, CT or ultrasound. What follows is a very …

MRIs employ powerful magnets which produce a strong magnetic field that forces protons in the body to align with that field. When a radiofrequency current is then pulsed through the patient, …

Basic Principle of MRI The hydrogen (1^H) atom inside body possess “spin” In the absence of external magnetic field, the spin directions of all atoms are random and cancel each other.

While it may seem like magic, the technology behind MRI is deeply rooted in physics and mathematics. In this blog post, we’ll explore the fundamental concepts that drive MRI, …

Alternatively, this page contains less formal short videos that attempt to give shorter, intuitive overviews of specific topics. The original lectures were intended to teach MRI physics to …

Aug 27, 2025 · MRI works because many biological tissues are rich in hydrogen (water and lipids). Each hydrogen nucleus (a single proton) behaves like a tiny bar magnet with spin.

Comprehensive online course designed to explain in a simple way how magnetic resonance imaging works. Step-by-step, you will develop expertise in basic magnetic resonance imaging …

Do you feel discouraged and downtrodden every time you sit through an MRI physics lecture? Do you feel the need to close your eyes and forget the past as hallucinations of spinning arrows …

Jul 9, 2025 · Inspired by this article, this chapter reduces the complex physics of MRI into small conceptual bites that together provides a primer for clinical trainees in radiology interested in …