What is a PET-CT Scan?
A PET-CT scan combines two powerful imaging techniques:
PET (Positron Emission Tomography): Highlights areas of abnormal metabolic activity, often indicating cancer cells.
CT (Computed Tomography): Provides detailed anatomical images of the body.
By fusing these two methods, PET-CT delivers a precise map of cancer’s location, size, and spread, allowing doctors to make informed treatment decisions.
Why is PET-CT Important?
PET-CT scans are widely used for:
Cancer diagnosis and early detection
Staging of cancer to determine how far it has spread
Monitoring treatment response for chemotherapy, radiotherapy, or immunotherapy
Detecting recurrence after treatment
Guiding biopsies and surgical planning
This dual imaging approach is especially valuable because it distinguishes between active disease and scar tissue, reducing uncertainty in patient management.
How the Procedure Works
During a PET-CT scan:
A small amount of radioactive tracer is injected into the bloodstream.
The tracer accumulates in areas with high metabolic activity (often cancer cells).
The patient lies on a scanning table while the machine captures detailed PET and CT images.
The procedure is non-invasive, painless, and typically completed within 30–60 minutes. Most patients can resume normal activities immediately afterward.
Benefits of PET-CT Scan
✅ Highly accurate detection of cancer and metastasis
✅ Combines anatomical and functional imaging
✅ Assists in personalized treatment planning
✅ Monitors treatment effectiveness
✅ Non-invasive with minimal discomfort
PET-CT at Arion Radiotherapy & Oncology Centre
At Arion Radiotherapy & Oncology Centre, Bangalore, we use advanced PET-CT scanners with high-resolution imaging capabilities.
Our nuclear medicine and radiology teams work together to:
Provide early and precise diagnosis
Support accurate cancer staging
Enable tailored treatment planning for chemotherapy, immunotherapy, or radiotherapy
With PET-CT at Arion, patients benefit from world-class imaging combined with compassionate care and expert guidance.
Conclusion
PET-CT scans are a cornerstone of modern cancer diagnosis and management, offering accuracy, precision, and early intervention opportunities.
At Arion, our advanced imaging services ensure every patient receives cutting-edge diagnostics and expert support throughout their treatment journey.