A new method to increase the penetration depth of intravascular ultrasound with coded excitation imaging

摘要

Intravascular ultrasound (IVUS) is a well-established diagnostic method that provides high-resolution images of vessel walls and atherosclerotic plaques. High-frequency (>50 MHz) ultrasound enables the spatial resolution of IVUS to approach that of optical imaging methods. However, the penetration depth decreases when using higher imaging frequencies due to the greater acoustic attenuation. In this paper we propose an ultrasound system specifically designed for coded excitation based IVUS (CE-IVUS) applications.