Modulated Excitation Imaging System for Intravascular Ultrasound.

	Modulated Excitation Imaging System for Intravascular Ultrasound.
	Xia, Jingjing; Zhang, Lining; Su, Min; Fu, Qiang; Chen, Yan; Wang, Xingying; Qiu, Weibao; Zheng, Hairong; Zhang, Yaonan; Dai, Jiyan
刊名	IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
	2017
文献子类	期刊论文
英文摘要	Advances in methodologies and tools often lead to new insights into cardiovascular diseases. Intravascular ultrasound (IVUS) is a well-established diagnostic method that provides high-resolution images of the vessel wall 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. An imaging method that improves the penetration depth of high-resolution IVUS would, therefore, be of major clinical importance. Modulated excitation imaging is known to allow ultrasound waves to penetrate further. This paper presents an ultrasound system specifically for modulated-excitation-based IVUS imaging. The system incorporates a high-voltage waveform generator and an image processing board that are optimized for IVUS applications. In addition, a miniaturized ultrasound transducer has been constructed using a Pb(Mg1/3Nb2/3)O-3-PbTiO3 single crystal to improve the ultrasound characteristics. The results show that the proposed system was able to provide increases of 86.7% in penetration depth and 9.6 dB in the signal-tonoise ratio for 60 MHz IVUS. In vitro tissue samples were also investigated to demonstrate the performance of the system.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/12074]
专题	深圳先进技术研究院_医工所
作者单位	IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
推荐引用方式 GB/T 7714	Xia, Jingjing,Zhang, Lining,Su, Min,et al. Modulated Excitation Imaging System for Intravascular Ultrasound.[J]. IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING,2017.
APA	Xia, Jingjing.,Zhang, Lining.,Su, Min.,Fu, Qiang.,Chen, Yan.,...&Dai, Jiyan.(2017).Modulated Excitation Imaging System for Intravascular Ultrasound..IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING.
MLA	Xia, Jingjing,et al."Modulated Excitation Imaging System for Intravascular Ultrasound.".IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING (2017).