Clinical question to be answered: Evaluate for intracranial process. Signs and symptoms: 51-year-old female with severe headaches x 4 days, family history of brain aneurysm. MRI CT of brain without and with infusion of contrast.No evidence of hemorrhage, edema, mass-effect, midline shift or hydrocephalus. Cortical sulci, ventricular system and all CSF cisterns remain within normal. Calvarium, paranasal sinuses and mastoid air cells are unremarkable.Post infusion images demonstrate no abnormal enhancement the brain parenchyma or leptomeninges. This examination cannot exclude possibility of aneurysm. If an aneurysm is highly suspected a CTA of intracranial circulation is the appropriate test for detection of aneurysm.65 cc of Omnipaque was utilized for this study.
Normal CT of brain without and with infusion of contrast.