Magnetic resonance imaging (MRI) is a medical imaging method
used in radiology to provide images of the body's
architecture and physiological processes. MRI scanners
create pictures of the organs in the body by using powerful
magnetic fields, magnetic field gradients, and radio waves.
MRI is distinct from CT and PET scans in that it does not
employ X-rays or ionising radiation.
MRI is a nuclear magnetic resonance (NMR) medical application
that may also be utilised for imaging in other NMR
applications such as NMR spectroscopy.
MRI is commonly utilised in hospitals and clinics for medical
diagnosis, staging, and illness follow-up. MRI gives higher
contrast in pictures of soft tissues, such as the brain or
belly, than CT.
However, because to the lengthier and louder measurements with
the subject in a long, restricting tube, it may be seen as
less pleasant by patients, but "Open" MRI designs typically
alleviate this. Furthermore, implants and other
non-removable metal in the body might constitute a concern
and prevent certain individuals from successfully
undertaking an MRI test.