Very Low-Cost C-Scan Ultrasonic Imaging

成本极低的 C 扫描超声波成像

• 批准号: 6784486
• 负责人: Karen E Morgan
• 金额: $ 14.17万
• 依托单位: POCKETSONICS
• 依托单位国家: 美国
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-03-01 至 2006-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6784486
• 关键词: bioimaging /biomedical imaging; biomedical equipment development; catheterization; clinical biomedical equipment; computer program /software; cost effectiveness; evaluation /testing; image guided surgery /therapy; image processing; phlebotomy; portable biomedical equipment; ultrasound blood flow measurement

DESCRIPTION (provided by applicant): This Phase I STTR proposal seeks funding to support development and evaluation of a prototype low-cost, easy to use and portable ultrasound imaging system. There are many applications in clinical medicine where such a transcutaneous imaging system would be of great value. For this proposal, our main focus is to provide guidance for intravenous catheter insertion. The role of ultrasound in this and other similar needle insertion procedures is well known. However, this research is oriented towards achieving an order of magnitude cost reduction, retaining reasonable image quality (particularly contrast), and developing the versatility to offer additional scan planes beyond those currently in common practice. Specifically, the proposed system will provide C-Scan capability using a highly integrated 2D transducer array and beamformer. We hypothesize that C-scan imaging will make our system considerably more intuitive to the less experienced user and therefore more likely to be widely accepted. The Aims of this proposal are: 1). Assemble C-scan imaging system consisting of 2D array, existing custom integrated circuit and PC-based beamformer. This prototype will provide proof of concept for this low cost imaging strategy and builds from previous research in 2D transducer technology, novel beamforming algorithms and highly integrated circuitry. 2.) Obtain phantom data using prototype system and compare beamforming algorithms off-line. Using the prototype, experimental data will be gathered in order to test system performance with several new beamforming strategies. 3.) Design, fabricate, and test high-risk aspects of the integrated circuit and associated packaging. Performance aspects of the integrated circuit such as SNR, power, crosstalk, protection circuits and transducer interface will be tested with the production of a prototype board. These aims will test the hypothesis that a combination of integrated circuit topology, low profile 2D array, and beamforming algorithms can be implemented in order to meet the cost, size, and power constraints of our long-term goals. This research is a collaborative effort between PocketSonics and the University of Virginia Departments of Biomedical Engineering and Electrical and Computer Engineering.

描述（由申请人提供）：第一阶段 STTR 提案寻求资金来支持低成本、易于使用的便携式超声成像系统原型的开发和评估。这种经皮成像系统在临床医学中有许多应用，具有很大的价值。对于该提案，我们的主要重点是为静脉导管插入提供指导。超声波在该手术和其他类似的针插入手术中的作用是众所周知的。然而，这项研究的目的是实现一个数量级的成本降低，保留合理的图像质量（特别是对比度），并开发多功能性以提供超出当前常见实践的额外扫描平面。具体来说，所提出的系统将使用高度集成的二维换能器阵列和波束形成器来提供 C 扫描功能。我们假设 C 扫描成像将使我们的系统对于经验不足的用户来说更加直观，因此更有可能被广泛接受。该提案的目标是： 1).组装由 2D 阵列、现有定制集成电路和基于 PC 的波束形成器组成的 C 扫描成像系统。该原型将为这种低成本成像策略提供概念证明，并基于先前在 2D 换能器技术、新颖波束形成算法和高度集成电路方面的研究而构建。 2.) 使用原型系统获取幻象数据并离线比较波束形成算法。使用原型，将收集实验数据，以便使用几种新的波束成形策略测试系统性能。 3.) 设计、制造和测试集成电路及相关封装的高风险方面。集成电路的性能方面，如信噪比、功率、串扰、保护电路和传感器接口将通过原型板的生产进行测试。这些目标将测试这样的假设：可以实现集成电路拓扑、薄型二维阵列和波束成形算法的组合，以满足我们长期目标的成本、尺寸和功耗限制。 这项研究是 PocketSonics 和弗吉尼亚大学生物医学工程系以及电气与计算机工程系之间的合作成果。