A PET scan may not detect tumors with low activity or those that are very small and slow growing. If a PET scan is negative, your doctor may recommend other tests to help diagnose or rule out cancer.

PET (positron emission tomography) is an extremely safe and powerful method for imaging inside the body, used to evaluate organs and other tissues for potential diseases, including cancer. This ...

Figure 1. Overview of the MIf-PET system and example results from a visual oddball task in healthy and Alzheimer's disease participants. (a) Prototype of the high-resolution, upright PET scanner ...