Abstract
Although carotid artery ultrasonography is frequently performed as perioperative management of CEA and CAS, there is little evidence for its use. Low echoic plaques indicate DWI-positive lesions more frequently than echogenic or high echoic plaques after CAS. We usually use multiple modalities, e.g., MRI, not just ultrasonography. We also use ultrasonography to detect acute occlusion after CEA and stent thrombosis after CAS.
