The grey outer floor is the floor of the mind from MRI and the interior colored construction is cingulate gyrus, part of the brain’s emotional system visualized with PET.
Different levels of positrons are shown as completely different colors and brightness on a PET picture. Some elements of the body break down natural chemicals resembling glucose faster than others. A PET scan is especially useful in detecting most cancers as a result of most cancers use more glucose than normal tissue. Areas of higher intensity, referred to as ‘hot spots’, present where giant amounts of the radio-tracer have built up. Less intense areas, or ‘cold spots’, point out a smaller concentration of radio-tracer.
A PET scan works by detecting the energy released by positrons. Positrons are tiny particles that are made as the radio-tracer is broken down inside your body. As positrons are damaged down they create gamma rays. These gamma rays are detected by the scanner, which creates a three-dimensional image. The image can present how components of your physique work, by the best way by which it breaks down the radio-tracer.
After your PET scan, a very small quantity of radioactive sugar will stay in your body. So, make sure to drink plenty of water to help flush it out your system. You needn’t follow any particular dietary restrictions or guidelines after your PET scan. If you’re travelling abroad within a number of days of your scan, it may be a good idea to take your appointment letter with you to show that you’ve had a scan. Most airports have sensitive radiation displays which may decide up the trace of radiation following your check.