摘要
通过微波成像进行急性脑卒中的诊断技术具有无电离辐射、速度快、体积小和成本低的优点,有望成为CT与MRI技术的辅助或替代手段。在微波成像系统中,天线作为信号的发射与接收装置,对成像系统的性能有重要影响。目前用于脑卒中成像系统的天线种类多、性能各异,但对天线性能缺乏明确的评价标准。主要介绍了多个成像系统采用的天线,从天线带宽、近场传输角度分析了各种天线的优缺点,总结了成像系统对天线的共性设计要求,比较了各种类型成像系统的性能指标,指出了微波成像系统天线技术的发展趋势,为基于微波成像的脑卒中诊断研究提供借鉴。
The diagnostic technology of acute stroke by microwave imaging has the advantages of being non-ionizing,fast,small,and low-cost.Therefore,this technology is expected to become an auxiliary or alternative means to CT and MRI technology.As the signal transmitting and receiving device of the microwave imaging system,the antenna has an important influence on the performance of the imaging system.At present,there are many antennas with different performances used in imaging systems,but there is a lack of clear evaluation criteria for them.In this paper,several typical antennas were introduced,their advantages and disadvantages from the perspective of bandwidth and near-field were analyzed,and the common requirements of imaging systems for antennas and the performance indicators of various types of imaging systems were summarized.Moreover,the development trend of antenna technology for microwave imaging was pointed out to provide a reference for the study of stroke microwave imaging technology.
作者
张海生
宁旭
徐林
庄伟
白泽霖
周利龙
许佳
王凤
陈明生
Zhang Haisheng;Ning Xu;Xu Lin;Zhuang Wei;Bai Zelin;Zhou Lilong;Xu Jia;Wang Feng;Chen Mingsheng(College of Biomedical Engineering and Imaging Medicine,Army Medical University,Chongging 400038,China)
出处
《国际生物医学工程杂志》
CAS
2023年第3期231-239,共9页
International Journal of Biomedical Engineering
基金
国家自然科学基金项目(62171444)。
关键词
脑卒中
微波成像
天线
Stroke
Microwave imaging
Antenna
