Article Figures & Data
Figures
- Fig 1.
Arch aortogram in left anterior oblique projection shows both the left common carotid artery (A) and the left subclavian artery (B) originating from a left brachiocephalic trunk (C). Normal origin of both the right common carotid artery (D) and the subclavian artery (E) from the right brachiocephalic trunk (F) can be seen. Note the smaller size of the left hypoplastic vertebral artery (G).
- Fig 2.
Selective right common carotid arteriograms show the type I proatlantal artery (A) originating from the right internal carotid artery (B) at the C2 level.
A, Anteroposterior projection.
B, Lateral projection.
- Fig 3.
Both the contrast-enhanced 3D MR angiograms of the neck and the selective common carotid arteriograms show the branches of the external carotid arteries (A) originating directly from the common carotid arteries (B) at the C4 level on both sides. The type I proatlantal artery (C), the internal carotid arteries (D), and the left hypoplastic vertebral artery (E) can be seen.
A, Contrast-enhanced 3D MR angiogram.
B, Right selective common carotid arteriogram in lateral projection.
C, Left selective common carotid arteriogram in anteroposterior projection.
