Positron Emission Tomography-Computed Tomography (PET-CT)

Positron Emission Tomography-Computed Tomography (PET-CT)


PET-CT (Positron Emission Tomography and Computed Tomography) is also a dual-modality imaging study combining metabolic and anatomical information. The PET scan demonstrates regional metabolic information which is usually altered in disease process, while the CT scan reveals the structure and location of lesion within the body. The combination of PET-CT images enables accurate diagnosis and localization of disease. PET-CT scan is a non-invasive procedure and generally patients do not suffer any imaging related discomfort.


Common Indications of PET-CT study



  • Diagnosis and staging of malignancy before treatment planning
  • Monitor therapy response and effectiveness
  • Surveillance of cancer recurrence


  • Evaluate dementia, Parkinsonism, psychiatric disorders and epilepsy
  • Pyrexia of Unknown Origin (PUO)
  • Locate occult septic foci
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