What does Sievert refer to in medical imaging?

• A. Effective dose
• B. Radiation exposure
• C. Image quality
• D. Time of exposure

Answer: (A)

The Sievert is a unit of measurement used in the field of radiation protection to quantify the biological effect of ionizing radiation on human tissue. It represents the effective dose of radiation received, taking into account both the amount of radiation exposure and the specific type of radiation involved. The effective dose is important in medical imaging, especially in procedures involving ionizing radiation, as it helps assess the potential risk of harm to patients and informs decision-making about minimizing exposure.

This unit allows health professionals to evaluate and compare the risk associated with different types of radiation and imaging techniques. Understanding the effective dose helps ensure that the benefits of imaging procedures outweigh the potential risks, guiding practitioners in making informed choices about patient safety and care.