Learn / PET/CT

Molecular imaging · PT / EN

Inside PET/CT

Explore how radiotracers, photon coincidence, reconstruction and CT attenuation correction produce a map of tracer distribution.

Open interactive laboratory →
Signal · Method · Interpretation

What you will explore

  1. Radioactive decay and positron annihilation.
  2. Coincidence detection, sinograms and filtered back-projection.
  3. Time of flight and CT attenuation correction.
  4. SUV calculation and interpretation limits.

Before you start

This resource uses a simplified 2D model and synthetic data. It does not reproduce a clinical reconstruction, validate a scanner or provide diagnostic thresholds. FDG illustrates glucose uptake; other PET tracers investigate different targets.

Sources and context

IAEA, Quality Assurance for PET and PET/CT Systems · EANM, FDG PET/CT procedure guidelines.