Catalog item:

Screening Tests for Brain Aneurysms (AANS)

Campaign Series: Choosing Wisely
Medical Category: Imaging
Article Type: Advice
Language: Plain English, Spanish
Affiliation: American Association of Neurological Surgeons
Format: PDF
Most recent update: 03/12/2021
Doctors use imaging tests—like CT scans or MRIs—to screen for brain aneurysms, weak areas in blood vessels that can burst and cause a stroke. That may sound like a good idea. But the tests and follow-up can do more harm than good. Brain aneurysms are rare. So when doctors order imaging tests, they usually don’t find any aneurysms. That means patients are exposed to risks without any benefit.