PET scan is the short form of positron emission tomography, and CT scan is the short form of computed tomography.
PET scan is the short form of positron emission tomography, and CT scan is the short form of computed tomography. PET and CT scan is the radiological procedure used to diagnose abnormalities in the body. PET scan is more advanced scan which uses radioactive tracer for the detection of abnormalities in the body where as CT scan uses X-rays for the detection of abnormalities by creating 3D images of the tissues or abnormal area for the detection of abnormalities. Both procedures can be used for the detection of cancers in any part of the body, but a PET scan can detect the abnormality at the cellular level. This helps in early and easy detection of cancer, which can be treated effectively at the early stages.
What is a PET scan?
PET is the short form of Positron Emission Tomography, which is a diagnostic procedure for the detection of abnormalities at the cellular level. This is a more advanced procedure that uses radioactive tracer for the detection of abnormalities in the body. The radioactive tracer can have allergic reactions to some patients, and it is important to carry serum creatinine test before going for a PET scan.
What is a CT scan?
CT scan is the short form of Computed Tomography, which is a diagnostic procedure used for the detection of abnormalities in the body. CT uses motorized X-ray with a computer to create cross-sectional 3D images of the body parts or the abnormal area. This helps in the easy detection of abnormality and helps in the timely treatment of the condition. The procedure is used to show bones, organs, soft tissues, joints, tumors, etc.
PET Scan Vs CT Scan
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PET Scan (Positron Emission Tomography) |
CT Scan (Computed Tomography) |
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Shows metabolic and functional activity of tissues |
Provides detailed anatomical images of structures |
|
Functional imaging |
Structural imaging |
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Uses radioactive tracers (e.g., FDG, I-131, etc.) |
Uses iodinated contrast dye (optional) |
|
Moderate to high (from radiotracer and scanner) |
Moderate (from X-rays) |
|
Detecting cancer, brain disorders, and heart diseases |
Diagnosing fractures, tumors, and internal bleeding |
| Lower anatomical detail, but shows cellular activity |
High-resolution images of organs, bones, and tissues |
|
Typically 2–3 hours (including tracer uptake time) |
10–30 minutes |
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Generally, more expensive due to the radiotracer and complexity |
Less expensive than PET scans |
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Often combined with CT for PET-CT scans for better accuracy |
Can be performed alone or combined with PET or MRI |
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Available in specialized centers |
Widely available in most hospitals and diagnostic centers |
What is the Cost of a PET scan?
The cost of a PET scan varies depending on the location and healthcare facility. The average cost of a PET scan ranges from INR 12000 to INR 45000 in Delhi NCR.
What is the Cost of a CT scan?
The cost of a CT scan varies depending on the location and healthcare facility. The average cost of a CT scan ranges from INR 1500 to INR 12000 in Delhi NCR.
Frequently Asked Questions (FAQ)
What is the full form of PET scan?
The full form of PET is Positron Emission Tomography
What is the full form of CT scan?
The full form of CT is Computed Tomography
Can a PET scan detect tumors in the body?
Yes, a PET scan can detect tumors in the body
Can a CT scan detect tumors in the body?
Yes, CT scans detect tumors in the body
Where to go for a PET scan in Delhi NCR?
Patients can visit Ganesh Diagnostic and Imaging Centre in Delhi NCR for any type of PET scan with affordable rates and quality results.
