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What is Difference Between PET scan and CT scan

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What is Difference Between PET scan and CT scan

What is Difference Between PET scan and CT scan

In this article, we will discuss about the difference between PET scan and the CT scan. We will also discuss some common questions related to the procedures.

PET scan uses radioactive tracer for the detection of abnormalities at the cellular level. This helps in easy and early detection of cancer and tumors, which can be treated easily and early. CT scan uses X-rays to create the 3D images of the conditions or abnormalities in the patient. The procedure uses motorized X-rays for the detection of abnormalities in the body. It is used to detect the fractures, internal bleeding and tumours. It gives anatomical view of the cancer and helps to design the treatment.

What is the Different Between PET Scan and CT Scan?

Here is the list of differences between PET scan and CT scan

Aspect

PET Scan

CT scan

Full form

Positron Emission Tomography

Computed Tomography

Purpose

Detects metabolic or functional activity

Detects anatomical or structural abnormalities

Imaging Technique

Use radioactive tracer

Use X-rays

Type of information

Shows cellular-level functions

Shows cross-sectional structure

Common uses

Cancer staging, heart function, brain disorder

Bone fracture, tumors, internal bleeding, organ evaluation

Image Detail

Lower anatomical detail

High resolution structural detail

What are the various cancers detected by PET scan?

Various cancers detected my PET scan are listed below:

  • Solid tumours 
  • High metabolic rate cancers 
  • Lymphoma and Neuroendocrine tumors
  • Brain cancer
  • Breast cancer 
  • Lung cancer
  • Neck cancer
  • Prostate cancer
  • Lymphatic cancer
  • Testicular cancer
  • vaginal cancer 
  • bladder cancer 
  • Stomach cancer
  • Esophageal cancer
  • Thyroid cancer 
  • Uterine cancer
  • Renal cancers etc.

What are the various conditions detected by CT scan?

Various conditions detected by CT scan include:

  • Brain abnormalities
  • Blood clots
  • Tumours
  • Internal bleeding
  • Kidney stones
  • Heart problems
  • Fractures
  • Spinal cord injuries 
  • Inflammation
  • Infection etc.

List of PET CT Scans Available at Ganesh Diagnostic and Imaging Centre that include both PET and CT scan

Conclusion

PET scan uses radioactive tracer for the detection of abnormalities at the cellular level. This helps in easy and early detection of cancer and tumors, which can be treated easily and early. CT scan uses X-rays to create the 3D images of the conditions or abnormalities in the patient. The procedure uses motorized X-rays for the detection of abnormalities in the body. It is used to detect the fractures, internal bleeding and tumours. It gives anatomical view of the cancer and helps to design the treatment. Various cancers detected by PET scan include Lymphoma and Neuroendocrine tumors, Brain cancer, Breast cancer, Lung cancer, Neck cancer etc.

Frequently Asked Questions (FAQ)

Which cancers are detected by PET scan?

PET scan detects various cancers like Lymphoma and Neuroendocrine tumors, Brain cancer, Breast cancer, Lung cancer, Neck cancer etc.

Which abnormalities are detected by CT scan?

CT scan can detect various abnormalities like Blood clots, Tumours, Internal bleeding, Kidney stones, Heart problems etc.

What scan is more expensive PET or CT?

PET scan is more expensive than CT scan.

Can PET Scan detect any type of Cancer?

Yes, PET scan can detect almost all cancers.