A simple explanation of how MRI works!
MRI, or Magnetic Resonance Imaging, is a medical imaging technique used to get pictures of the body. It uses a magnetic field and the water in your body to create these images.
The water in your body, or more specifically, the hydrogen protons in the water have a magnetic quality to them. The hydrogen protons have a “normal spin” to them, but when put into a magnetic field, the protons will align to the magnetic field. When you cut off the magnetic field, the protons will relax back to their “normal spin”. This process produces a signal, or a resonance, that can be measured and computed into an image.
The hydrogen protons in the different tissues of the body will relax back to their “normal spin” at different rates, and this allows the MRI machine to distinguish between the different types of body tissues; such as fat, muscle, bone, fluids, etc.
By adding radio frequent currents and additional magnetic fields, along with specific computer software MRI gives you very detailed 3D imaging that allows you to view the body from multiple different angles.