You can eat and drink before transcranial MRI, but not before abdominal MRI. When doing various examinations of the abdomen, including magnetic resonance examination, because eating will lead to an increase in the contents of the intestinal lumen, the liver pancreas and other digestive gland organs begin to work, too many foreign objects and the normal tissues of the abdomen are not good to distinguish between affecting the results of the examination, so the patient is required to go on an empty stomach to do the examination. However, the main purpose of transcranial magnetic resonance is to look at the internal structure of the cranium and brain, and it is sensitive to cranial brain tumors, strokes, demyelinating diseases, aneurysms, etc. The results are generally not affected by eating and drinking, so you can eat and drink before the examination. Whether or not you can eat and drink before the examination is related to the items to be examined, and you should consult a specialist for guidance on whether or not you can eat and drink before the examination, so as not to delay the examination.