3D- versus 2D-Power-Doppler Ultrasound for Evaluation of Internal Carotid Arteries: Implications for Whole Plaque Analysis with Gray-Scale Median

macharzina@gmail.com Aim: Whole plaque analysis of carotid artery stenosis with Gray-Scale Median (GSM) allows quantification of plaque echogenicity, correlates with histology and was shown to be associated with symptoms and embolic cerebral findings. The aim of the study is to find out whether 3-dimensional Power-Doppler ultrasound (3D-PDUS) datasets comprising whole plaque stenoses provide different GSM than single sections acquired by 2D-PDUS as commonly used for this purpose. Patients and Methods: 27 patients were scanned with a 3D-ultrasound (US) probe at 10 Mhz. GSM analysis was performed offline with a sp…