Barker, 2008

The Physics Group performs research in a wide range of the physical aspects of Positron Emission Tomography (PET) which uses radioactive tracers to provide quantitative three-dimensional in vivo measurements of physiological processes such as blood flow, metabolism, and neuroreceptor behavior in living human subjects. This scanning technique helps to diagnose disease, and is also useful to study the underlying physiology of normal and disease states. The department has four state-of-the-art PET scanners that are used for research and diagnostic procedures, including an ultra-high resolution research tomograph (HRRT) that has automatic patient motion detection.

Current research areas in the group include:

1. Acceleration of image reconstruction algorithms using graphics processing cards
2. Implementation and evaluation of methods to correct for photon scatter in PET imaging
3. Improvements in patient motion tracking and compensation
4. Design of new image reconstruction algorithms to provide higher resolution and/or lower image noise for the HRRT
5. Study of the impact of physical and instrument effects on the quantification and quality of PET images

The summer intern will be introduced to an appropriate area of investigation and will develop and test new algorithms using existing or new software and perform necessary data analysis under the direction of the staff of the section.