To what extent does obesity affect image quality?
In magnetic resonance imaging (MRI), the atomic nuclei of the body’s own tissues orient themselves according to the strong magnetic field. In this process, all atomic nuclei within the magnetic field are independently aligned along the magnetic field lines. This alignment is independent of the composition of the tissue.
Therefore, overweight has no influence on the image quality in the MRI.This distinguishes MRI imaging from other imaging procedures that use X-rays (X-ray, CT). This radiation penetrates the tissues of the body and is absorbed to varying degrees. After leaving the body, the remaining radiation is registered by a film.
Fatty tissue leads to increased absorption of the radiation, which is why fewer signals can be registered by the film. As a result, a higher radiation dose is required to ensure the same image quality.
