Recent Advances in Transducers for Intravascular Ultrasound (IVUS) Imaging.
Recent Advances in Transducers for Intravascular Ultrasound (IVUS) Imaging.
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DOI：
10.3390/s21103540
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发表时间：
2021-05-19
期刊：
影响因子：
--
通讯作者：
Jiang X
中科院分区：
文献类型：
--
作者：
Peng C;Wu H;Kim S;Dai X;Jiang X
作为一种众所周知的医学影像方法，血管内超声（IVUS）成像在冠状动脉疾病的诊断、治疗指导和治疗后评估中发挥着至关重要的作用。通过将安装有微型超声换能器的导管插入动脉，可以在 IVUS 成像中精确评估血管腔开口、血管壁形态和其他相关的血液和血管特性。超声换能器作为IVUS系统的关键部件，对于IVUS成像性能的决定至关重要。近年来，超声换能器在 IVUS 成像应用方面取得了广泛的成就。本文对用于 IVUS 成像的超声换能器的最新进展进行了全面回顾。首先，对IVUS成像原理、评估参数和IVUS导管进行了基本了解。其次，介绍了用于IVUS成像的三种不同类型的超声换能器（压电超声换能器、压电微机械超声换能器和电容微机械超声换能器）。特别是，用于 IVUS 成像的压电超声换能器的最新进展根据其不同的工作机制、结构和采用的材料得到了广泛的研究。第三，讨论了基于 IVUS 的动脉粥样硬化斑块多模态血管内成像。最后，重点介绍了 IVUS 成像应用的未来研究的总结和展望。
As a well-known medical imaging methodology, intravascular ultrasound (IVUS) imaging plays a critical role in diagnosis, treatment guidance and post-treatment assessment of coronary artery diseases. By cannulating a miniature ultrasound transducer mounted catheter into an artery, the vessel lumen opening, vessel wall morphology and other associated blood and vessel properties can be precisely assessed in IVUS imaging. Ultrasound transducer, as the key component of an IVUS system, is critical in determining the IVUS imaging performance. In recent years, a wide range of achievements in ultrasound transducers have been reported for IVUS imaging applications. Herein, a comprehensive review is given on recent advances in ultrasound transducers for IVUS imaging. Firstly, a fundamental understanding of IVUS imaging principle, evaluation parameters and IVUS catheter are summarized. Secondly, three different types of ultrasound transducers (piezoelectric ultrasound transducer, piezoelectric micromachined ultrasound transducer and capacitive micromachined ultrasound transducer) for IVUS imaging are presented. Particularly, the recent advances in piezoelectric ultrasound transducer for IVUS imaging are extensively examined according to their different working mechanisms, configurations and materials adopted. Thirdly, IVUS-based multimodality intravascular imaging of atherosclerotic plaque is discussed. Finally, summary and perspectives on the future studies are highlighted for IVUS imaging applications.
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