ROLE OF COLOR CODED DOPPLER SONOGRAPHY IN THE ASSESSMENT OF EXTRACRANIAL CAROTID ARTERIES IN TYPE 2 DIABETIC PATIENTS

Abstract

Stroke is a major health problem. It's the 3rd cause of death. Ischemia from severe flow limiting stenosis due to atherosclerotic disease involving the extracranial carotid arteries is implicated in 20- 30% of strokes .An estimated 80% of strokes are thromboembolic in origin. Often with carotid plaques as embolic source. (Visona et a/.,1995). Diabetes is an independent risk factor for carotid atherosclerosis its plaque usually involves the internal carotid artery within 2cm of the carotid bifurcation . This location is readily amenable to examination by sonography as well as surgical intervention (Chang et al, 1995). AIMOFWORK To assess the role of high resolution B-mode US and CCDS in the evaluation of extracranial carotid arteries in type 2 diabetic patients to detect the prevalence of atherosclerosis as well as the value of inetime-media thickness measurement as a prognostic factor of the disease. -