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）：本第I阶段STTR提案寻求资金，以支持低成本、易于使用和便携式超声成像系统原型的开发和评估。在临床医学中有许多应用，其中这种经皮成像系统将具有很大的价值。对于这个建议，我们的主要重点是提供指导静脉导管插入。超声波在这种和其他类似的针插入过程中的作用是众所周知的。然而，这项研究是面向实现一个数量级的成本降低，保持合理的图像质量（特别是对比度），并开发的多功能性，提供额外的扫描平面超出目前在共同的做法。具体而言，拟议的系统将提供C扫描能力，使用高度集成的二维换能器阵列和波束形成器。我们假设C扫描成像将使我们的系统对经验不足的用户更加直观，因此更有可能被广泛接受。本提案的目的是：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验证，并基于先前在2D换能器技术、新型波束形成算法和高度集成电路方面的研究。2.）的情况。利用原型系统获取体模数据，离线比较波束形成算法。使用原型，实验数据将被收集，以测试系统的性能与几个新的波束形成策略。3.）第三章设计、制造和测试集成电路和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测试与原型板的生产。这些目标将测试的假设，集成电路拓扑结构，低剖面二维阵列，波束形成算法的组合，可以实现，以满足我们的长期目标的成本，尺寸和功率约束。 这项研究是PocketSonics和弗吉尼亚大学生物医学工程系以及电气和计算机工程系之间的合作成果。