Ultrasonographic Evaluation of Carotid Luminal Diameter and Plaques Morphology in Stroke Patients
Journal Title: Nepal Journal of Neuroscience - Year 2008, Vol 5, Issue 2
Abstract
The aim of this study is to evaluate carotid stenosis and plaque morphology in stroke patients. High resolution carotid ultrasound of bilateral carotid artery was done in 110 clinically proven stroke patients. Intimomedial thickness (IMT) was assessed 1-1.5 cm proximal to the bulb. For plaques the near and far walls of the arterial segments were scanned both longitudinally and transversely. Plaques were classified as low, moderate and strongly echogenic with shadowing (calcified). Carotid luminal diameter was measured in transverse plane perpendicular to the long axis of the vessel at the end of the diastole. Percentage of stenosis was calculated using both cross sectional and velocimetric criteria. Plaques were more common in the carotid bulb (43.6% on right side and 53.6%on left side) and most common was calcified type (29.1%) which was predominant on left side. In internal carotid artery (ICA) moderately echogenic plaques (8.1%) were more common. Plaques were less common in common carotid artery (CCA). Duplex color Doppler sonography of the carotid artery is a noninvasive, accurate and cost effective screening modality in stroke patients.
Authors and Affiliations
Ghanashyam Gurung, MD
Keywords
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