Portable C-scan Ultrasound for Rapid Vascular Access

用于快速血管通路的便携式 C 扫描超声

• 批准号: 7108418
• 负责人: Karen E Morgan
• 金额: $ 15万
• 依托单位: POCKETSONICS
• 依托单位国家: 美国
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-06-01 至 2008-09-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7108418
• 关键词: allied health personnel; bioimaging /biomedical imaging; biomedical equipment development; cardiovascular disorder therapy; cardiovascular imaging /visualization; catheterization; clinical research; computer graphics /printing; computer human interaction; evaluation /testing; health care personnel performance; human subject; image enhancement; image guided surgery /therapy; interactive multimedia; peripheral blood vessel disorder; phantom model; portable biomedical equipment; ultrasound

DESCRIPTION (provided by applicant): The goal of this research and development is to save lives and improve quality of care of people requiring vascular access by enabling quicker access and minimizing failed attempts. Achieving rapid vascular access is critical in many cases where rapid administration of IV fluids or medications can alter patient outcomes. This Phase I proposal seeks funding to support the development of a low-cost (<$2,000 per unit), easy to use, and highly portable C-Scan ultrasonic imaging system called the Sonic Window. This system will be comparable in size to a mobile phone or PDA and is designed to meet the needs of users with no experience in medical imaging at a fraction of the cost of currently available portable ultrasound systems. The C-scan format combined with the compact display integrated at the transducer allows the user to see the image in the perspective that would be obtained if you had a clear 'window' through the skin into the tissue or vessel of interest. The Sonic Window is being realized by combining a low profile 2D array, custom integrated circuits, novel beamforming and image processing algorithms implemented on a commercial Digital Signal Processor and a LCD display. Innovative technological approaches are employed to circumvent conventional engineering wisdom that holds that C-Scan (image plane parallel to skin surface) imaging is inherently more complex and costly than B-Scan imaging (plane perpendicular to skin surface). The specific aim of this Phase I research is to test the hypothesis that the C-scan image format and the display integrated with the transducer will make it easier and faster for novice ultrasound users to perform ultrasound-guided vascular access procedures. This hypothesis will be tested using a study with an inanimate ultrasound model in which paramedics use the Sonic Window system for guiding rapid peripheral IV access. These procedures will be compared directly to those guided by a state-of-the-art commercial B- Scan portable ultrasound system designed for vascular access applications. Paramedics are chosen for this study because they do not have significant prior exposure to the use of ultrasound but are trained in obtaining peripheral IV catheterization. Before this study can begin, we will complete integration of the prototype Sonic Window system and perform system validation and optimization. A positive conclusion from this study, demonstrating that this prototype is faster and easier to use, will provide increased confidence in the commercial feasibility for the Sonic Window product. In future stages of development, we will extend this work to include human studies as well as demonstrate the effectiveness of the Sonic Window for guiding more complicated access procedures such as central line insertions. This research is a collaborative effort between PocketSonics, Inc. and the University of Virginia Departments of Biomedical Eng. and Electrical and Computer Eng.

描述（由申请人提供）：本研究和开发的目的是通过迅速访问和最大程度地减少失败的尝试来挽救生命并提高需要血管通道的人的护理质量。在许多情况下，静脉输液或药物可以改变患者的预后，实现快速血管通道至关重要。该阶段I提案寻求资金来支持低成本（<每单位<$ 2,000），易于使用和高度便携式的C扫描超声成像系统，称为Sonic窗口。该系统的尺寸与手机或PDA相当，旨在满足没有医疗成像经验的用户的需求，而当前可用的便携式超声系统的成本很少。 C-Scan格式与在换能器上集成的紧凑型显示器结合使用，使用户可以在透视上查看图像，如果您通过皮肤清晰地“窗口”进入了感兴趣的组织或容器。通过组合低调的2D阵列，自定义集成电路，新颖的光束形成和图像处理算法，可以实现声音窗口，并实现了声音窗口。使用创新的技术方法来规避传统的工程智慧，该智慧认为，与B扫描成像（平面垂直于皮肤表面）相比，C扫描（平行于皮肤表面的图像平面）的成像本质上更为复杂，更为昂贵。本阶段研究的具体目的是检验以下假设：C-Scan图像格式和与传感器集成的显示器将使新手超声用户更容易，更快地执行超声引导的血管访问程序。该假设将使用具有无生命的超声模型的研究进行检验，其中护理人员使用声音窗口系统来指导快速外围静脉输入。这些程序将直接与由最先进的商业B-扫描便携式超声系统指导的程序进行比较，该系统旨在血管通道应用。选择此研究的护理人员是因为他们没有明显的超声使用超声波，但经过训练以获得外周IV导管插入术。在这项研究开始之前，我们将完成原型声音窗口系统的集成，并执行系统验证和优化。这项研究的一个积极结论表明，该原型更快，更易于使用，将为声音窗户产品的商业可行性提供增强的信心。在未来的发展阶段，我们将扩展这项工作，以包括人类研究，并证明声音窗口指导更复杂的访问程序（例如中央线插入）的有效性。这项研究是Pocketsonics，Inc。与弗吉尼亚大学生物医学工程系之间的合作努力。以及电气和计算机工程。