Stuff You Should Know How MRI Works
Aug 17, 2021
Discover the marvels of MRI technology and its fascinating history, including Dr. Raymond Damadian's groundbreaking contributions. Learn how these machines use superconductivity and powerful magnets for detailed imaging. Delve into the non-invasive advantages of MRIs, the collaboration with AI for diagnostics, and even child-friendly innovations to ease anxiety during procedures. Plus, explore the world of functional MRI and its implications in brain research, along with essential safety considerations.
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First MRI
- In July 1977, the first MRI, "Indomitable," didn't work on Dr. Damadian.
- A smaller colleague had to be used for the five-hour scan.
MRI Magnet
- The MRI's key component is a superconducting magnet, stronger than a fridge magnet.
- This magnet aligns hydrogen protons in the body.
Proton Alignment
- Inside the MRI's magnetic field, hydrogen protons align with the field's polarity.
- A radiofrequency pulse then disrupts this alignment, and their return is measured.