What is the typical location for anterior circulation aneurysms in neuro angiography?

Anterior circulation aneurysms are most commonly located at the internal carotid artery. In neuroangiography, this anatomy is critical to understand for both diagnosis and treatment planning. The internal carotid artery provides blood to the anterior circulation of the brain, which includes major vessels that supply the cerebral hemispheres, such as the middle cerebral artery and the anterior cerebral artery.

Aneurysms often form at key junctions or bifurcations, which are prevalent in this region. Sites such as the posterior communicating artery and the bifurcation of the middle cerebral artery from the internal carotid artery are typical locations for these types of aneurysms.

In contrast, while other vessels listed might have their own aneurysms, they are not considered part of the anterior circulation. For instance, the vertebral artery supplies the posterior circulation, while the subclavian artery and aorta primarily direct blood flow to systemic circulation rather than specifically to the anterior cerebral structures. Understanding these anatomical distinctions is crucial for clinicians involved in diagnosing and treating cerebrovascular conditions via interventional radiology.