Research on the Application of 99mTc-TCR-FAPI SPECT Imaging in Rheumatoid Arthritis

This study is testing a new type of SPECT imaging scan using a tracer called 99mTc-TCR-FAPI to detect cancer spread in patients with various types of solid tumors. FAPI (fibroblast activation protein inhibitor) scans target proteins found around tumor cells that are not found in most normal tissues, potentially making them more accurate than standard scans. **You may be eligible if...** - You have been diagnosed with a solid tumor (such as lung, breast, stomach, or other cancers) - Your doctor recommends imaging to assess where the cancer has spread - You are able to undergo a SPECT scan **You may NOT be eligible if...** - You are pregnant or breastfeeding - You have severe kidney problems - You have a known allergy to the tracer components - You are unable to cooperate with the imaging procedure Talk to your doctor to see if this trial is right for you.