Patients undergoing Coronary Artery Bypass Grafting (CABG) are at an increased risk of stroke or transient ischemic attack (TIA), mainly due to underlying carotid artery disease, particularly soft carotid plaques. Plaques in the carotid arteries can become unstable, potentially leading to embolic events and stroke when they get ruptured. Ulcerated and soft plaque are considered the most common types of plaque, which may lead to cerebral events. In some cases, echolucent plaques may also be misdiagnosed by traditional Ultrasound. Ultrasound 2D Shear Wave Elastography (2D-SWE) has emerged as a promising non-invasive tool for assessing tissue stiffness, which may provide insights into plaque stability. This prospective pilot study aimed to compare carotid plaque stiffness between patients undergoing coronary artery bypass grafting (CABG) and those not scheduled for the procedure.