Physics and Radiation Biology

The study of physics and radiation biology is an integral part of training diagnostic radiologists. Understanding the physical principles by which medical images are created, by a variety of methods - radiographic, nuclear, ultrasonic, magnetic resonance, or other yet to be widely used imaging technology - is crucial to their proper interpretation. In order to exploit the potential of imaging technology, the radiologist must understand the technology, rather than simply being a passive user of equipment.

The physics curriculum is designed to be both practical and theoretical. Radiophysics, radiochemistry, and radiopharmacology are integrated during the nuclear medicine portion of the course. The effects of radiation on tissue and the environment is discussed in the radiation biology portion of the course. The principles of radiation dosimetry and radiation protection are covered at sufficient depth to enable residents to estimate and balance radiation risks against the diagnostic benefits radiation exposure may offer. Residents will learn techniques to maximize the benefits of radiation exposure, while minimizing unnecessary exposure to themselves, their patients, and others.

The physics and radiation biology course at NYU consists of a series of lectures; along with a series of practical laboratory exercises in medical physics. All first year residents are expected to complete the laboratory exercises during their first rotation in nuclear medicine. In June, the faculty give an intensive lecture series on radiological and imaging physics, radiobiology, radiation protection, and instrumentation, which first year residents are required to attend. The residents are expected to take and pass the physics part of the ABR board exam the following September. Records of laboratory completion and lecture attendance are maintained to document the requirements of residency accrediting agencies and licensing authorities (such as the NRC). The curriculum is designed to cover the topics on the ABR physics examination as well as provide a solid foundation for a radiology career.