A preliminary study on the blind angle estimation for Quality Assessment of Color Doppler ultrasound diagnostic systems

Giorgia Fiori, Andrea Scorza, Maurizio Schmid, Jan Galo, Silvia Conforto, Salvatore A. Sciuto

Abstract

Quality Controls (QCs) for the evaluation of Color Doppler (CD) performance play a pivotal role since CD is one of the most widely used Doppler techniques in medical imaging. Among the recommended test parameters, directional accuracy at 90° is included, even if its assessment is carried out visually. Therefore, in this study, a novel CD test parameter, called blind angle, has been proposed and defined as it allows testing the Doppler frequency shift dependency on the insonation angle. Moreover, a novel automatic method for the estimation of this parameter through the post-processing of CD videos has been proposed. Data have been collected from a single ultrasound diagnostic system equipped with a phased array probe. Tests have been carried out for two probe frequencies and three constant flow rate regimes set on a flow phantom. Based on the preliminary promising outcomes, further studies are going to be carried out.

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IMEKO-TC4-2022-60.pdf

DOI

10.21014/tc4-2022.60

IMEKO TC

TC4 - Measurement of Electrical Quantities

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