This course provides an in-depth exploration of how radiation interacts with biological systems and the impact it can have on living tissue. The course begins by defining radiobiology and reviewing its historical development, including significant radiological incidents dating back to 1896. Foundational concepts such as the Law of Bergonie and Tribondeau, which explains how different cells respond to radiation, are covered to help participants understand why certain tissues are more sensitive than others.

The course examines various types of radiation, along with key principles like wavelength, frequency, and their relationship to biological effects. Case studies, including examples of radiation poisoning, help illustrate real-world outcomes of exposure, with a comparison of LD 50/30 (lethal dose for 50% of a population within 30 days) across different species, from humans to cockroaches.

Participants will also gain a thorough understanding of radiation measurement, including exposure, absorbed dose, equivalent dose, and effective dose, with historical context provided through notable events such as the atomic bombings and other major radiation accidents.

The course takes a closer look at biological effects on the human body, covering concepts like Linear Energy Transfer (LET), the differences between fractionated and protracted radiation exposure, and how various organ systems (hematopoietic, gastrointestinal, and cerebrovascular) respond to high doses. Participants will also discuss the growing concern of increased medical radiation exposure in the U.S., balancing risk vs. benefit in diagnostic imaging.

Practical insights are provided on where patients may encounter radiation doses that lead to deterministic and stochastic effects, and how exposure from different imaging procedures compares. This course is essential for imaging professionals seeking to deepen their understanding of radiation’s biological impact and ensure patient safety through informed, responsible practice.

*We are located in Houston, Texas, and all webinars are hosted in Central Time. You will receive the webinar link via email from Zoom one day before your class, as well as one hour before it begins.