Dr. Tsubokura's Radiation Lecture Vol.15
Author: Masaharu Tsubokura
Editors: Akihiko Ozaki M.D., Yuki Senoo
29. Should we avoid radiation inspection?
Hospitals utilize a variety of imaging examinations, such as X-rays, CTs, MRIs, and ultrasounds, for diagnosis and treatment purposes.
X-rays and CT scanning sensitize the film with radiation whereas MRI creates images by using magnetic force produced in a tunnel made of strong magnets. As the name implies, in an ultrasound examination, ultrasounds are allied to organs, and the reflected waves are visualized. Principally, your body will not be exposed to ionizing radiation in MRIs and ultrasound examinations.
Therefore, you may think MRIs and ultrasound examinations are better examination methods because they do not use radiation.
However, this is not true.