Evolving Role of PET in Interventional Radiology-Based Oncology Procedures

Interventional oncology has become an integral fourth pillar in the treatment of cancer over the past few decades. Interventional oncology is a set of locoregional oncologic therapies delivered by interventional radiologists for the treatment of solid tumor deposits. Traditional morphologic imaging methods of staging disease and measuring treatment response are not designed to measure locoregional tumor responses or global treatment responses in the setting of locoregional therapy. For example, if a patient has liver-dominant metastatic disease, which represents the primary site of tumor progression, locoregional therapy may provide a clinical benefit that cannot be predicted or assessed by conventional morphologic methods of tumor response or progression.

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