Asymptotic Methods in Medical Ultrasound

医学超声中的渐近方法

• 批准号: 9410218
• 负责人: Paul Barbone
• 金额: $ 8.88万
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-09-15 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9410218&HistoricalAwards=false
• 关键词: Asymptotic; Methods; Medical; Ultrasound

9410218 Barbone Proposed in this RIA research project is the study of a model which consists of an acoustic beam of finite width propagating normally into a laminated dissipative half-space containing randomly distributed point scatters. This problem combines many of the essential difficulties encountered in imaging parenchymal tissue: inhomogeneity on many scales, non-constant attenuation, random scattering, and backscatter from interfaces. The goals of the asymptotic analysis correspond to the two stages in the research plan: (1) to formulate a diffraction -corrected one-dimensional inverse problem consistent with the three- dimensional imaging problem, and (2) to examine different averaging techniques for the random scattering and determine their applicability to texture analysis. ***

9410218 Barbone在RIA研究项目中提出的是一个模型的研究，该模型包括一个有限宽度的声束，该声束垂直传播到一个包含随机分布的点散射的层压耗散半空间。 这个问题结合了在成像实质组织中遇到的许多基本困难：在许多尺度上的不均匀性、非恒定衰减、随机散射和来自界面的反向散射。 渐近分析的目标对应于研究计划中的两个阶段：（1）制定与三维成像问题一致的衍射校正一维逆问题，以及（2）检查随机散射的不同平均技术并确定其对纹理分析的适用性。 ***