The methods of imaging have improved enormously in the past 20-30 years. Take for example,
the ultra-sound and CT scans. Patients may be monitored in greater detail
without resorting to invasive surgery. Doctors can keep closer track of
injuries, and this provides added security that allows them to offer more
opportunities to "wait and see" how natural healing fares. There are also
the magnetic resonance imaging (MRI) devices that provide high-definition
pictures of parts of the
body.
MRI's and the Heart
An MRI or magnetic resonance imaging can
help the doctor before or after someone has a heart attack. By
examining the MRI picture, the heart attack
could be prevented. The benefits of an MRI are that it doesn't require the
use of radiation or radioisotopes that can be harmful to the body.
Therefore it's relatively safe. When the human body is placed in a magnet
it produces weak signals because the human body is made up of atoms.
By using electronics and a computer, these signals can be magnified,
recorded and used to make pictures of the body, so that the doctor can
look at them and figure out what is wrong with the heart and hopefully
prescribe some medicine or antibiotics. The MRI will also show how thick
the chambers of the heart are and if their damaged.
The 
ack
could be prevented. The benefits of an MRI are that it doesn't require the
use of radiation or radioisotopes that can be harmful to the body.
Therefore it's relatively safe. When the human body is placed in a magnet
it produces weak signals because the human body is made up of atoms.
By using electronics and a computer, these signals can be magnified,
recorded and used to make pictures of the body, so that the doctor can
look at them and figure out what is wrong with the heart and hopefully
prescribe some medicine or antibiotics. The MRI will also show how thick
the chambers of the heart are and if their damaged. 
