Doppler Ultrasound Automatic Vessel Locator and Monitor

多普勒超声自动血管定位和监测仪

• 批准号: 6631331
• 负责人: Mark A Moehring
• 金额: $ 10万
• 依托单位: SPENCER TECHNOLOGIES
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6631331
• 关键词: bioimaging /biomedical imaging; biomedical equipment development; blood vessels; computer program /software; computer system design /evaluation; diagnosis design /evaluation; patient monitoring device; phantom model; ultrasound blood flow measurement

DESCRIPTION (provided by applicant): This proposal is to develop new Doppler ultrasound concepts for automatic determination of location of basal arteries of the brain. This technology is needed for quickly and simply obtained diagnosis of pathological blood flow conditions that may indicate acute stroke in progress or the risk for stroke. This technology also presents the potential for dramatically reducing the time necessary to find blood vessels, reducing training time, and opening the door for a much wider group of health professionals to obtain the important information provided with high sensitivity and specificity. The utilization limiting frustrations experienced by current users of transcranial Doppler ultrasound will be eliminated with this technology. This technology will be particularly important in diagnosis and monitoring of the acute stroke patient during the limited time window in which thrombolytic therapy is an option. The work proposed entails: (1) building a novel ultrasound probe and electronics with ability to steer the ultrasound beam, (2) performing high speed signal processing of digitized received echos for determination of spatial location of the associated Doppler shift signals, and (3) steering the ultrasound beam to lock in on this detected blood flow. This plan presents the first step in developing a novel ultrasound probe which will perform unaided location of the basal cerebral arteries.

描述（由申请人提供）： 该提案旨在开发新的多普勒超声概念，用于自动确定大脑基底动脉的位置。这项技术需要快速、简单地获得病理性血流状况的诊断，这些状况可能表明急性中风正在进行或中风的风险。该技术还具有显着减少寻找血管所需时间、减少培训时间的潜力，并为更广泛的卫生专业人员群体打开大门，以获取高灵敏度和特异性的重要信息。这项技术将消除当前经颅多普勒超声用户所经历的使用限制的困扰。该技术对于在可选择溶栓治疗的有限时间窗口内诊断和监测急性中风患者尤其重要。拟议的工作包括：(1) 构建一种新型超声探头和能够引导超声束的电子器件，(2) 对数字化接收回波进行高速信号处理，以确定相关多普勒频移信号的空间位置，以及 (3 ）控制超声波束以锁定检测到的血流。该计划迈出了开发新型超声波探头的第一步，该探头将无需辅助即可定位大脑基底动脉。