Performance test and application of GSO detector assembly for a continuous blood sampling system

A new input function monitoring system has been developed using a GSO detector for both PET and SPECT quantitative studies. The paired assembly of crystals provided an absolute sensitivity of approximately 7% for PET tracers and 70% for /sup 99m/Tc and /sup 201/Tl (SPECT tracers). This system was applied to clinical use and animal study such as monkey and rat. This study demonstrates that the present system can he of use in both clinical and small animal studies using SPECT and PET tracers.