What is a PSMA PET Scan for Cancer?
PSMA (Prostate-Specific Membrane Antigen) is a transmembrane protein found in all prostatic tissues, including prostate cancer tissues. Although PSMA expression in other cancers is rare, it may occur.
PSMA PET scans have demonstrated remarkable precision in identifying prostate cancer recurrence & metastatic disease in recently diagnosed individuals with high-risk disease.
Who should consider a PSMA PET Scan?
Typically, PSMA PET scans are conducted on individuals for two main purposes: initial staging following a recent diagnosis and restaging after therapy if there are clinical suspicions of recurrence.
When it comes to patients who have lately been detected with prostate cancer, PSMA PET scans are generally recommended for those classified as intermediate or high risk based on various factors, as determined by the doctor.
Likewise, patients who have previously been treated for prostate cancer may exhibit clinical signs of recurrence. These patients also fall into the intermediate to high-risk classifications, and if the doctor suspects recurrence, a PSMA PET scan is generally suggested to diagnose any recurrence sites.
How good is a PSMA PET Scan with PSMA at finding Prostate Cancer?
Among the various imaging studies available in the current day & age, PSMA PET scans utilising PSMA (18F-DCFPyL) have demonstrated superior capability in detecting prostate cancer lesions compared to other imaging modalities.
While various imaging tests have their own advantages and disadvantages, only PSMA PET scans possess the comprehensive sensitivity to reliably detect prostate cancer and accurately characterise findings as prostate cancer. In addition, PSMA PET scans not only excel at identifying multiple prostate cancer lesions but also, when positive, carry a high probability of indicating the presence of prostate cancer.
PSMA PET scans employ a distinct functional technique of imaging prostate cancer cells. PSMA, a glycoprotein found on the surface of prostate cancer cells, serves as a target for specific tracers used in the scan. After the injection of these tracers, PET scan images are acquired using standard procedures. These images are then examined & analysed by a radiologist to guide the development of an appropriate treatment strategy.
How do I prepare for a PSMA PET Scan?
PSMA PET scans do not require any specific preparation instructions as opposed to other PET scans. Fasting is not necessary, as is avoiding the consumption of particular food types, and there is also no requirement to consume extra water before the scan.
It’s also unnecessary to postpone or stop taking your ongoing medications. Simply consult and follow your doctor’s instructions regarding the medications and maintain your usual dietary patterns.
To book a lab test or imaging scan at the nearest Clinico centre, feel free to contact us anytime, as we are available 24/7. You can reach us at 9504555555.
