ABSTRACT
MRI and is associated with potentially dangerous side effects.
6. CT and MRI visualize cerebral ventricles and subarachnoid spaces, and these are always enlarged in patients with Alzheimer's disease. 19.
7. Lumbar puncture with CSF analysis is usually necessary to diagnose bacterial, viral, and neoplastic 20. meningitis; however, in some cases, it is justified to treat patients with suspected bacterial meningitis empirically, without first examining CSF.
