Cerebral Angiogram
This is the definitive test that confirms the diagnosis of moyamoya. "Contrast" (or dye) is injected into arteries to reveal the anatomy of the arteries of the brain and scalp. This is a minimally invasive test that requires patients to stay at the hospital for several hours. This test assesses the severity of moyamoya and its results guide treatment options, which are determined by how severe the disease is and what the external (scalp) blood supply is.
Side view of a normal angiogram.
MCA = middle cerebral artery
ACA = anterior cerebral artery
ICA = internal carotid artery
Angiogram of a patient with moyamoya disease. You can see the MCA and ACA vessels are impaired and moyamoya vessels have appeared along with other collateral vessels.
Condition Spotlight
Clinical Trials
Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials.
Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.
