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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >A history of medical and biological imaging with polyvinylidene fluoride (PVDF) transducers
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A history of medical and biological imaging with polyvinylidene fluoride (PVDF) transducers

机译：聚偏二氟乙烯（PVDF）换能器的医学和生物成像历史

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摘要

Polyvinylidene fluoride (PVDF) is a ferroelectric polymer with unique properties suitable for use in a wide range of medical and biological imaging applications. Most notable among these is its low acoustic impedance, which matches that of the body reasonably well, and its flexible mechanical properties. This paper traces the exploitation of PVDF as a transducer material from its early beginnings for thyroid and breast imaging to its current well-established applications in ultrasound biomicroscopy. Although PVDF's electromechanical properties fall short of composite ceramic materials in the traditional diagnostic frequency range, it has significant advantages in the 25-to 100-MHz range. Design criteria for high frequency transducers are reviewed, and examples of relevant medical and biological images are used to illustrate the excellent image quality obtained with this remarkable material.
机译：聚偏二氟乙烯（PVDF）是一种铁电聚合物，具有独特的性能，适用于广泛的医学和生物成像应用。其中最显着的是它的低声阻抗（可以很好地与身体相匹配）以及灵活的机械性能。本文追溯了PVDF作为换能器材料的开发，从其早期用于甲状腺和乳房成像的发展到目前在超声生物显微镜中已确立的应用。尽管在传统的诊断频率范围内，PVDF的机电性能不及复合陶瓷材料，但它在25至100 MHz范围内具有明显的优势。审查了高频换能器的设计标准，并使用了相关医学和生物学图像的例子来说明使用这种非凡材料获得的出色图像质量。

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