Improving the off-center resolution in position emission tomography using depth-of-interaction information
利用作用深度信息提高正电子断层成像仪分辨率一致性

It is well known that if the depth of interaction(DOI) within the crystal can be measured, the parallax error can be corrected and the resolution should be uniform throughout the field of view. We have investigated the spatial resolution of off-center sources in a positron emission tomography (PET) ring detector configuration using our proposed DOI detector. It is confirmed that the depth-encoding detector provides better spatial resolution for the oblique incidence of gamma-rays.