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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Piezoelectric contrast materials for ultrasound imaging
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Piezoelectric contrast materials for ultrasound imaging

机译：超声造影压电对比材料

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摘要

Piezoelectric ceramics and polymers can be used as a type of marker and contrast material for medical ultrasound imaging systems. High-frequency electrical signals are detected from surface electrodes when these materials are introduced into conducting media such as tissue and scanned by ultrasound imaging systems. Detected signals are applied to the imaging circuits of a modified ultrasound system such that they display a unique type of electrical image that shows the piezomaterial's polarization, shape, and position at arbitrarily high contrast compared to the conventional ultrasound acoustic image. The resulting piezoelectric image can be merged in real-time with conventional ultrasound acoustic imaging to form a composite image. This approach is of interest in the development of improved techniques for imaging medical devices that are implanted or otherwise introduced into the body.
机译：压电陶瓷和聚合物可用作医学超声成像系统的一种标记和对比材料。当将这些材料引入导电介质（如组织）并由超声成像系统扫描时，会从表面电极检测到高频电信号。被检测的信号被施加到改进的超声系统的成像电路，使得它们显示出独特类型的电图像，该电图像与常规超声声像相比以任意高的对比度显示压电材料的极化，形状和位置。所得的压电图像可以与常规超声成像实时合并，以形成合成图像。在开发用于对植入或以其他方式引入体内的医疗设备进行成像的改进技术方面，这种方法引起了人们的兴趣。

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