Positron emission tomography (PET) is an advanced technology which uses radiotracers to assess the function of organs and tissues. Following article provides a glimpse regarding technical issues and indications regarding thoracic PET imaging. Positron emission tomography (PET) is the technique that allows in vivo imaging of metabolic, physiologic, and pathologic processes. The initial use of PET was limited for the research purpose but eventually the technique has evolved into an indispensable clinical examination.

It has been used as a research tool for many years, and has evolved into a clinically indispensable imaging examination. Since it got the clinical footing, PET equipment and the costs have come down significantly. With the evolution traditional PET scanners with an array of several thousand ring detectors can now be replaced by traditional two­headed single photon emission…