What are the main territories supplied by the basilar artery?
Direct branches from the basilar artery supply the midbrain, pons and medulla.
These annotated images are windowed to reduce the beam hardening artefact from patient's earrings. The first two images demonstrate hyperdense clot in P1 segment of the left PCA with corresponding filling defect on angiogram phase. The second two images outline the hyperdense clot in the base of the basilar artery with a corresponding filling defect in the arterial phase.