High-risk CT features for detection of local recurrence after stereotactic ablative radiotherapy for lung cancer.

Mednet Member

Radiation Oncology · Beaumont Health System

A growing lesion with increasing FDG avidity at the site of previous SBRT is cancer unless proven otherwise. One must be careful though since some residual FDG uptake can last a year after radiation. PET is not terribly useful at the primary site until at least 6 months after SBRT.