Main manufacturers : Siemens , GE , Philips , Toshiba
MRI allow to explore human internal organs without radiation. It use statics and dynamics magnetic field and code a picture of the distribution of the hydrogen nuclei that has been prior excited.
MRI equipment are divided in 2 parts :
- Low-field MRI lower than 0.5 Tesla are equipped with permanent or resistif magnet.
- High field MRI from 1 to 3 Tesla, The most representatives are 1,5 Tesla. Magnets are supraconductives.
1,5 Tesla MRI features :
- Superconductives magnet
- Coils dedicated by anatomical area
- Patient bed
- Working station.