{"title":"Two-directional phase aberration correction using a two-dimensional array","authors":"Y. Miwa, R. Shinomura","doi":"10.1109/ULTSYM.1997.663346","DOIUrl":null,"url":null,"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.","PeriodicalId":6369,"journal":{"name":"1997 IEEE Ultrasonics Symposium Proceedings. An International Symposium (Cat. No.97CH36118)","volume":"20 3 1","pages":"1733-1736 vol.2"},"PeriodicalIF":0.0000,"publicationDate":"1997-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"1997 IEEE Ultrasonics Symposium Proceedings. An International Symposium (Cat. No.97CH36118)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ULTSYM.1997.663346","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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.