Which of the following mechanisms of patient burning in MRI is due to the RF transmitter?

The correct answer highlights the relationship between the radiofrequency (RF) transmitter and the phenomenon of patient burning due to electrical conductivity. In MRI, the RF transmitter emits energy that is absorbed by the tissues in the body. This absorption can lead to an increase in temperature, especially in tissues with higher electrical conductivity, which can inadvertently cause burns.

When RF energy is applied during an MRI scan, it generates an electromagnetic field that causes current to flow through conductive tissues. This results in Joule heating, where the heat generated in the tissue can lead to burns if not properly managed. High water content tissues, for example, exhibit greater conductivity, making them more susceptible to this heating effect.

Understanding the mechanism ensures that safety protocols can focus on monitoring and managing RF exposure, as well as patient positioning, to minimize the risk of burns. The other options relate to different aspects of MRI safety and equipment functioning but do not specifically describe the impact of the RF transmitter on patient burning directly linked to electrical conductivity.