New imaging technology is improving the detection rates of aneurysms, a study published in the August edition of Radiology has found.
Researchers found multidetector computed tomography (MDCT) angiography to be highly effective at locating intracranial aneurysms.
MDCT angiography can be used to speedily identify whether less invasive treatment can be used rather than open surgery.
Currently, most diagnosis of intracranial aneurysms is achieved using digital subtraction angiography (DSA).
However, MDCT angiography has a lower risk of mortality compared to DSA.
Lead author Karsten Papke said: "An important advantage of MDCT angiography is that information about the presence and characteristics of aneurysms is available at the earliest possible time."
He added: "MDCT can be used as the first step in diagnostic work-up of patients with subarachnoid hemorrhage."
Intracranial aneurysms are characterised by an abnormal bulging of one or more of the blood vessels of the brain.
They frequently remain undiscovered until they rupture, causing bleeding in the brain or in the surrounding subarachnoid membrane. This type of bleeding can result in brain damage, stroke or even death.