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Results of PET scan

PET scans may be useful in modifying treatment plans, particularly for diseases such as cancer, where the PET scan can determine if a tumour has been completely eradicated or if the tumour is partly active.

Doctors also can use a PET scan for follow up checks to determine whether previous treatment has been effective.

While more routine imaging techniques will show a mass of tissue, a PET scan can determine if this mass is leftover scar tissue or a recurring, active growth.