Radiation Protection During CT-Guided Interventions

Computed tomography (CT) is a valuable tool for performing certain image-guided interventions. The availability of axial images and the excellent contrast afforded by CT allows for accurate targeting of lesions. However, along with the many benefits of CT come certain risks, mainly those related to radiation exposure. Stray radiation is much more intense in CT labs compared to interventional labs and is at times directed towards the face and eyes of the physician. Patient exposure rates are often higher in CT-guided interventions than in fluoroscopically guided interventions. Therefore, adequate radiation protection is a key element of successful CT-guided procedures. The goal is to minimize the risk for both stochastic and tissue effects from radiation for both patient and operator.