What is Basic Principles of Positron Emission Tomography (PET)??

*  A radioactive isotope is injected and breakdowns, emitting a b +-particle.

*  Inside a short expanse, the b +-particle bumps into an electron and the two annihilate, making a two of g -rays.

*  By noticing and reconstructing where the g -rays of come from, we can assess the location and engrossment of radio-isotope.

Two  Typical PET Studies

FDG Study of Patient with Stroke

FDG “Brain Activation” Study

CYCLOTRON

                                                       

                                                      RADIO-CHEMISTRY LAB.

                                                     

                                                     THE PET SCANNER ITSELF

WHAT IS PET?

* Functional brain imaging using H217O or radio-labelled glucose (fluoro-deoxy glucose FDG).

* Metabolic studies

* Receptor studies