Subject area	Medicine
More specific subject area	Peripheral artery imaging and atherosclerosis
Type of data	Tables
How data was acquired	Standard US ultrasound and contrast-enhanced ultrasound
Data format	Analyzed
Experimental factors	The data reports correlation coefficients and p-value between each plaque echogenicity variable and each contrast-enhanced ultrasound variable
Experimental features	Carotid artery standard duplex ultrasound examination was performed to obtain images adequate for greyscale median measurement, performed offline. Then, contrast-enhanced ultrasound was performed according to subsequent visual and quantitative analysis.
Data source location	Bellinzona − 6500, Switzerland
Data accessibility	Data is within this article