Magnetic resonance angiography (MRA) of a patient with moyamoya disease
Magnetic resonance angiography (MRA) of a patient with moyamoya disease
A) There is severe narrowing of the distal part of the both carotid arteries (arrows). In addition, there is markedly reduced flow in the left middle cerebral artery and absence of both anterior cerebral arteries. B) Lateral projection MRA demonstrates severe narrowing of the distal internal carotid artery (arrow).