MRI

A girl friend of mine has a torn meniscus in her knee. There is no known medicine or therapy that will heal or fix a torn meniscus so her doctor ordered an MRI (Magnetic Resonance Imaging) to see it in detail before he would operate on it. Of coarse the MagnetNerd had to check-out the Monster Mag.

The machine is a General Electric Signa with a strength of 1.5 Tesla. The lady being swallowed is Denise.

Magnetic resonance imaging (MRI) is a medical imaging technique primarily used in Radiology to visualize the structure and function of the body. It provides detailed images of the body in any plane. MRI provides much greater contrast between the different soft tissues of the body than does computed tomography (CT), making it especially useful in neurological (brain), musculoskeletal, cardiovascular, and oncological (cancer) imaging. Unlike CT it uses no ionizing radiation, but uses a powerful magnetic field to align the nuclear magnetization of (usually) hydrogen atoms in water in the body. Radiofrequency fields are used to systematically alter the alignment of this magnetization, causing the hydrogen nuclei to produce a rotating magnetic field detectable by the scanner. This signal can be manipulated by additional magnetic fields to build up enough information to reconstruct an image of the body. http://en.wikipedia.org/wiki/Magnetic_resonance_imaging

This MRI machine has a huge superconducting magnet with a strength of 1.5 Tesla. A Tesla is 10,000 Gauss.

I want to thank the gals at DRA Imaging for showing me their huge toy. To show my appreciation I gave each a pair of 1/2" Neo cubes. They were totally amazed at the strength of something so small.