A focused ultrasound transducer for intravascular ultrasound application

Currently, intravascular ultrasound (IVUS) has been frequently used for diagnosing the atherosclerotic plaque due to its good imaging penetration and accurate evaluation. In general, two types of transducers were used for IVUS imaging, i.e. single-element transducer and radial array transducer. It should be noted that imaging resolution of single-element transducer was reduced in the deep area. In this study, we propose a focused ultrasound transducer specifically for intravascular ultrasound applications.