Related Experiment Video
Updated: Jul 19, 2026

An In Vivo Assessment of Blood-Brain Barrier Disruption in a Rat Model of Ischemic Stroke
Published on: March 11, 2018
[Angiographic study of dangerous anastomasis of the external carotid artery]
Denggao Liu1, Xuchen Ma, Baomin Li
1Department of Radiology, Peking University School of Stomatology, Beijing 100081, China.
Objective:
To investigate the dangerous anastomasis between the external carotid artery and the intracranial arteries.
Methods:
Angiograms of the external carotid artery in 250 cases were analyzed, including 35 cases of moyamoya and 215 cases of head and neck lesions.
Results:
The 35 cases of moyamoya, 14 middle meningeal arteries (MMA) were found to participate in the blood supply of the brain. In addition, 11 superficial temporal arteries and 7 occipital arteries supplied the brain. All the cases with ligated external carotid artery (ECA) had the pharyngo-occipital anastomasis. Moreover, the ophthalmic arteries in three cases were found to originate from the MMA.
Conclusions:
The external carotid artery has a variety of anastomasis with the internal carotid artery (ICA) and the vertebral artery. Under such circumstances, special measures must be taken to circumvent inadvertent intracranial embolization.
Related Concept Videos
The Arch of Aorta
Encircling the heart, the coronary arteries form a ring-like structure before...
Arteries of the Head and Neck
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
Aneurysm III: Interprofessional Care

