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An Optimum Imaging Scheme for IVUS Arrays: Eccentric Cylinder Wave Compounding
Ultrasonic Imaging ( IF 2.5 ) Pub Date : 2019-03-22 , DOI: 10.1177/0161734619836659
Mingxia Li 1 , Zhihua Feng 1
Affiliation  

With the development of integrated circuit (IC) technologies, complex transmitting and receiving circuits can be integrated into miniature intravascular ultrasound (IVUS) catheters, making it possible to adopt better synthesizing schemes for better imaging. Eccentric cylinder wave compounding should be an optimum synthesizing scheme for the small size cylinder shaped catheter. Eccentric cylinder waves centered at different points are emitted, signals are collected after each emission, and images can be synthesized with easy post processing. Detailed analyses about resolution and grating lobes were made; the optimum eccentric distance was determined. Simulations were done to examine the resolution, signal-to-noise ratio, and resistance to crosstalk and nonuniformity of arrays. Dual apodization and magnitude-based deconvolution were applied to further improve the results.

中文翻译:

IVUS 阵列的最佳成像方案:偏心圆柱波复合

随着集成电路(IC)技术的发展,复杂的发射和接收电路可以集成到微型血管内超声(IVUS)导管中,使得采用更好的合成方案获得更好的成像成为可能。偏心圆柱波复合应该是小尺寸圆柱导管的最佳合成方案。发射以不同点为中心的偏心圆柱波,每次发射后收集信号,合成图像,易于后期处理。对分辨率和栅瓣做了详细的分析;确定了最佳偏心距。进行了模拟以检查阵列的分辨率、信噪比以及串扰和不均匀性。
更新日期:2019-03-22
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