MRI, CT often the work up of a presumed epilepsy case would stop after CBC, chem profile, urinalysis and maybe chest
and abdominal xrays. Together these items often are called a "minimum database."
Today, however, with advanced imaging more widely available, it is less difficult to pursue the possibility of visible, anatomic brain abnormalities such as tumors. That said. not every seizure case necessarily needs these tests to survive. These tests simply exclude anatomic changes.