Two-directional phase aberration correction using a two-dimensional array

Y. Miwa, R. Shinomura
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引用次数: 7

Abstract

The aim of this paper is to show the effectiveness of two-directional phase aberration correction using real-time signals obtained from a human body. The authors constructed a two-dimensional array and the real-time data acquisition system for this purpose. The array has ten elements in both the scan and elevation directions. It is placed in contact with a human body and signals reflected from the subject's liver are digitized by parallel A/D converters and stored in memory. The data acquisition for each image is completed in 52.4 ms. A cross-sectional image of the liver is then constructed off-line with a computer. Images of the liver before and after the phase aberration correction show that the image was significantly improved after the compensation.
二维阵列双向相位像差校正
本文的目的是展示利用人体实时信号进行双向相位像差校正的有效性。为此构建了二维阵列和实时数据采集系统。该阵列在扫描和仰角方向上都有十个元素。它与人体接触,并通过并行a /D转换器将受试者肝脏反射的信号数字化并存储在存储器中。每张图像的数据采集在52.4 ms内完成。然后用计算机离线构建肝脏的横切面图像。肝脏相位像差校正前后的图像显示,补偿后的图像有明显改善。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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