Understanding PET CT FDG Whole Body Scan: A Powerful Diagnostic Tool at SCAN4HEALTH Gurgaon
In the ever-evolving field of medical diagnostics, the PET CT FDG Whole Body Scan in Gurgaon has emerged as a powerful and precise tool for detecting and monitoring various diseases—most notably cancer. This hybrid imaging technique blends two technologies—Positron Emission Tomography (PET) and Computed Tomography (CT)—to provide detailed insights into both the structure and function of tissues and organs.
What is a PET CT FDG Whole Body Scan?
A PET CT FDG scan involves injecting a small amount of a radioactive sugar molecule called Fluorodeoxyglucose (FDG) into the bloodstream. FDG is a glucose analog tagged with fluorine-18, a mildly radioactive tracer. Since cancer cells are typically more metabolically active than normal cells, they absorb more of this glucose tracer. The PET scan detects the radiation emitted by the FDG, highlighting areas of high metabolic activity. The CT scan, performed simultaneously, provides detailed anatomical images, helping precisely locate these areas.
When done as a whole-body scan, the PET CT covers the entire body—from the skull to the thighs or even down to the feet—allowing for comprehensive assessment and staging of diseases.
Why is it Done?
The PET CT FDG Whole Body Scan is widely used for:
-
Cancer detection and staging
Helps determine the exact location and extent of cancer and whether it has spread (metastasized). -
Monitoring treatment effectiveness
Assesses how well cancer is responding to chemotherapy, radiation, or immunotherapy. -
Detecting recurrence
Identifies any signs of cancer returning after treatment. -
Evaluating unexplained symptoms
In some cases, it helps investigate persistent symptoms like weight loss, fever, or fatigue when other tests are inconclusive.
What to Expect During the Procedure
The procedure typically takes 2 to 3 hours, though the scanning itself lasts about 30–60 minutes. Here’s a step-by-step overview:
-
Preparation
You may be asked to fast for 4–6 hours before the scan. Blood sugar levels are usually checked, as high glucose can affect FDG uptake. -
Tracer Injection
FDG is injected intravenously, followed by a resting period of about 45–60 minutes to allow the tracer to circulate. -
The Scan
You lie on a scanning table that moves slowly through the PET CT machine. It’s painless and non-invasive. -
Post-Scan
You can usually resume normal activities right after the scan, but drinking plenty of fluids is encouraged to help flush the tracer from your body.
Safety and Side Effects
PET CT scans are generally safe. The radiation dose is relatively low and well within diagnostic guidelines. The FDG tracer has no known allergic reactions and clears from the body within a day. However, it is not recommended for pregnant or breastfeeding women unless absolutely necessary.
Limitations
While highly effective, PET CT FDG scans are not foolproof:
-
Not all cancers show up clearly (e.g., some prostate or low-grade tumors).
-
Inflammatory or infectious conditions may mimic cancer by taking up FDG.
-
High blood sugar levels can reduce scan sensitivity.
Final Thoughts
Scan4health PET CT FDG Whole Body Scan center in Gurgaon offers a unique blend of anatomical and functional imaging that helps detect diseases early, guide treatment plans, and improve patient outcomes. If your doctor recommends this scan, it’s usually because it offers crucial insights that other imaging tests can’t provide.
As with any medical procedure, it’s important to discuss risks, benefits, and preparation with your healthcare provider to ensure optimal results.
Contact Us
SCAN4HEALTH
Pathology | Radiology | Molecular Imaging
Clinic Address: D4, EBD 65, Golf Course Extension Road, Gurugram
+91 9910-8862-00 / +91 977-3595-350
Comments
Post a Comment