Evaluation of Carotid Artery Plaques with B-Flow Sonography and Comparing the Results with Color, Power Doppler US and DSA

Authors : Terman GÜMÜŞ, Cem YÜCEL, Suna OKTAR, Hakan ÖZDEMİR, Baran ÖNAL, Erhan Turgut ILGIT

Pages : 50-57

View : 24 | Download : 26

Publication Date : 2021-01-25

Article Type : Research Paper

Abstract :PURPOSE: To evaluate carotid artery lesions with B-flow sonography and compare the findings with color, power Doppler sonography and digital subtraction angiography insert ignore into journalissuearticles values(DSA);. MATERIALS AND METHODS: Forty-Three patients insert ignore into journalissuearticles values(30 male, 14 female; mean age 64±9.2; age range: 42-81); with 61 carotid artery lesions were involved in the study. The lesions were evaluated with color, power Doppler and B-flow sonography. All images were reviewed and graded independently by two radiologists for surface delineation, plaque morphology and overall image quality. The grades for each technique were compared with Friedman and Wilcoxon tests. Simple regression analysis was used to compare the percentage of stenosis calculated with different sonographic techniques and DSA for lesions causing more than 60 % stenosis. RESULTS: Statistical analysis with Friedman test revealed that B-flow is superior to other sonographic techniques for all three parameters insert ignore into journalissuearticles values(plaque surface delineation, plaque morphology and overall image quality);. Wilcoxon test also showed B-flow is superior to other methods for the evaluation of plaque surface delineation and plaque morphology insert ignore into journalissuearticles values(p=0.000);; while no significant difference was found between B-flow and power Doppler imaging for the evaluation of overall image quality insert ignore into journalissuearticles values(p=0.09);. Kappa scores reflected moderate to good interobserver correlation insert ignore into journalissuearticles values(0.297-0.659);. The percentage of stenosis calculated with both B-flow and power Doppler sonography correlated with DSA significantly insert ignore into journalissuearticles values(p=0.000);. CONCLUSION: B-flow sonography is a technique that provides direct visualization of the blood echoes and the morphology of the surrounding vessel wall simultaneously. This technique maintains more efficient evaluation of carotid artery lesions by eliminating artifacts such as aliasing and overwriting.
Keywords : Ultrsonography, B Flow, Doppler, Atherosclerosis, Carotid Artery, Stenosis