Recent research interests have focused mainly on PET instrumentation, data processing, and image analysis. These have included data acquisition; quantitative image analysis; development of image-based biomarkers; statistical analysis of image data; optimizing clinical protocols; image artifacts; and quality assurance of PET/CT instrumentation. Recent national conference presentations include technical aspects of oncology PET standardized uptake value quantification including repeatability and practical imaging issues. In addition to research presentations at national meetings, he has been involved in workshops on PET/CT instrumentation and serves on the editorial board of the Journal of Nuclear Medicine.