Is the radiation from a bone scan significant?
Dec 09, 2022
Source: Cainiu Health
Dr. Lin Yunfei
Introduction
Before a bone scan, a radiotracer is generally injected into the body. This radiotracer contains a certain amount of radiation; however, the emitted rays have a relatively long range and weak ionizing ability, so they remain within the body's tolerable limits and usually do not cause harm. Typically, the radiotracer is metabolized and eliminated from the body within 24 hours after the bone scan, so patients need not be overly concerned.
Bone scans usually refer to bone imaging, which involves relatively low levels of radiation.
Bone imaging is a commonly used diagnostic method in medicine. It primarily uses radioactive isotopes to detect abnormalities in bone formation and metabolism. This includes regional bone planar imaging, whole-body bone scanning, bone three-phase imaging, and bone tomographic imaging. Before the examination, a radiotracer is typically injected into the patient's body. The tracer contains a small amount of radiation; however, the emitted rays have a long range and weak ionizing ability, so they remain within safe limits and generally do not cause harm to the body. Usually, within 24 hours after the bone scan, the radiotracer is completely eliminated from the body through natural metabolism, so patients need not be overly concerned.
Although bone imaging poses minimal risk to health, for safety reasons, it is recommended that pregnant women and infants avoid exposure. This is because fetuses and young children are more sensitive to radiation, which could potentially lead to long-term effects.
