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）： 该建议是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。需要这种技术来快速和简单地获得病理性血流状况的诊断，这些病理性血流状况可能指示正在进行中的急性中风或中风风险。该技术还具有极大地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了获得高灵敏度和特异性重要信息的大门。目前经颅多普勒超声用户所经历的利用限制挫折将被消除与这项技术。在溶栓治疗是一种选择的有限时间窗内，该技术在急性卒中患者的诊断和监测中将特别重要。拟议的工作包括：（1）构建具有操纵超声波束的能力的新型超声探头和电子器件，（2）对数字化的接收回波执行高速信号处理，以确定相关多普勒频移信号的空间位置，以及（3）操纵超声波束以锁定在该检测到的血流上。该计划提出了开发一种新型超声探头的第一步，该探头将执行基底脑动脉的无辅助定位。