Difference Between Pet Scan and…
Prostate cancer cells have great levels of Prostate-specific Membrane Antigen (PSMA). It can be easily detected, hence it is used as an indicator of prostate cancer. Prostate-specific membrane antigen – Positron Emission Tomography-Computed tomography (PSMA- PET Scan) imaging scan is the most sensitive scan available for the detection of prostate cancer, which means it can detect even the smallest tumors, that are usually missed by other scans and will significantly improve the detection and treatment of prostate cancer.
PSMA-PET Scan uses an FDA-approved PET-sensitive radioactive drug 68Ga-PSMA-11, this is a radioactive agent that binds to prostate cancer cells and helps in localizing prostate cancer cells.
This is how PSMA PET works
Once the Radioactive tracer drug – 68Ga-PSMA-11 is injected. It attaches to PSMA proteins that are over-expressed in prostate cancer tumors. The PET scan detects this concentrated PSMA tracer, to pinpoint tumors for more effective treatment.
Benefits of PSMA PET Scan
You should consider a PSMA-PET scan if you were initially diagnosed with prostate cancer and are at a risk for metastatic disease or if you have been previously treated (typically with radiation therapy or prostatectomy), but have developed biochemical recurrence.