Lateral ventricular widening can be diagnosed by MRI. If you just want to confirm the diagnosis of lateral ventricular widening, CT examination can also confirm the diagnosis, but CT is the imaging through the attenuation of radiation through the body, so there is a certain degree of radiation. MRI uses the changes in the body’s hydrogen protons in a magnetic field to image the brain, but it is not radioactive and does not show cranial artifacts. MRI can provide anatomical information of the head in multiple directions and dimensions, and can also give sagittal, coronal and axial views of the head. MRI can also be used for cerebrovascular disease, demyelinating disease, and congenital craniosynostosis.