Radiation physics

Introduction: Radiation comes in different forms of energy in motion. Doses of radiation and the area of interest are important considerations when imaging patients, particularly during percutaneous procedures. Methods: Reference texts in essential physics, principles of radiation imaging, and radiation dosimetry were reviewed. Results: Dose, exposure to radiation, and total body radiation delivery are reviewed and graphically tabulated. Conclusion: Each institution will monitor radiation dose delivered to the individual; however, individual physicians have the responsibility to protect themselves and their patients against excessive radiation exposure by knowing appropriate dosages and biological risks. (J Vasc Surg 2011;53:6S-8S.)