MRA Intracranial Projection. In this view, a "textbook" picture of the Circle of Willis can be seen. This view is especially good to assess for narrowing of the vertebral and basilar arteries, and ...

[4] Evaluation of Circle of Willis variants using magnetic resonance angiography. Scientific Reports (2022). [5] Exploring the anatomical configurations of the cerebral arteries in a cohort of ...

The circle of Willis is a junction of several important arteries at the bottom part of the brain. Learn more about its anatomy, function, and more.

Migraine with Aura Is Associated with an Incomplete Circle of Willis: Results of a Prospective Observational Study. PLoS ONE , 2013; 8 (7): e71007 DOI: 10.1371/journal.pone.0071007 Cite This Page : ...

A study from the University of Pennsylvania reveals that an incomplete 'circle of Willis,' a set of connections between arteries to the brain, may be responsible for migraines.

The image depicts the anatomy of the circle of Willis (A) and representative subjects with a complete (B) and incomplete circle of Willis (C).

The brain and the 'Circle of Willis' are examined at autopsy. Thickening of arteries due to atherosclerosis, bursting of aneurysm and haemorrhage of brain are seen at autopsy.