When going to the hospital to see a doctor, the doctor will open all kinds of examinations. X-ray, CT, B-ultrasound, MRI, what are the most common examinations? How should I choose? Dr. Clove told you with a picture! Finally, I’d like to talk to you about radiation. Some people are afraid of radiation from MRI and B-ultrasound, but in fact their worries are unnecessary. Unlike CT and X-ray radiography, MRI and B-ultrasound do not use X-rays and do not emit ionizing radiation during the examination, so these two examinations are quite safe. Even pregnant women need not worry if there is no condition that does not conform to the examination.