FIG 1. Angiographic and ultrasonographic findings of carotid arteries before (left panels) and after (right panels) CEA. Arrowheads indicate severe stenosis in the origin of the ICA. Note that the distal ICA dilated after CEA.

A, Angiographic findings before CEA.

B, TOCU findings before CEA.

C, Conventional carotid ultrasonographic findings before CEA.

D, Angiographic findings after CEA.

E, Transoral carotic ultrasonographic findings after CEA.

F, Conventional carotd ultrasonographic findings after CEA.