PHASED ARRAYS FOR MULTIPLANE ESOPHAGEAL ECHOS

多平面食管回声相控阵

• 批准号: 2218163
• 负责人: David J. Sahn
• 金额: $ 51.07万
• 依托单位: OREGON HEALTH & SCIENCE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-08-01 至 1995-04-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2218163
• 关键词: biomedical equipment development; cardiography; clinical biomedical equipment; computer program /software; congenital heart disorder; dogs; echocardiography; endoscopy; esophagus; heart disorder diagnosis; human subject; image processing; infant human (0-1 year); newborn human (0-6 weeks); ultrasonography; video recording system

It is the purpose of these technical and clinical studies to further advance the non-invasive evaluation of infants with congenital heart disease by providing specialized high-frequency phased array devices at 7.5 MHz and 10 MHz and specifically designed pediatric endoscopic devices for intraoperative exploration of congenital heart anatomy and for three- dimensional reconstruction of complex cardiovascular malformations. Our previous work on the first two years of this proposal has resulted in the design and implementation of the first functional 7.5 MHz miniaturized 64 element pediatric probes and their application in pediatric heart, abdominal, intracranial imaging and the imaging of vascular anatomy enhanced by Doppler and color flow methods. The probes served as the impetus for the development of commercial 7.5 MHz probes both by General Electric and attempts by other companies to master this technology. (Two probes at 7.5 MHz have been prepared by other groups. None is near-field optimized or is as high in resolution as ours). Further optimization of the design parameters of 7.5 MHz probes and the development of 10 MHz phase array probes should further advance pediatric cardiovascular imaging. Additionally, the rapid evolution of endoscopic and esophageal methods for evaluating patients' heart disease has proven of substantial importance in adult cardiology. In pediatric cardiology because of the complexity of congenital disease anatomy, there is also crucial need for miniaturized devices for use in babies for intraoperative monitoring of congenital heart disease repair. No high frequency pediatric endoscopes exist suitable for newborn infants. The endoscopic devices that we proposed to develop and build includes 7.5 MHz and 10 MHz endoscopic probes with 6 to 8 mm2 phased array tips built on 6 mm pediatric esophagoscopes which will be capable of multi-planar imaging and three dimensional reconstruction of cardiac structure and flow. Our efforts in extending the range and versatility of phased array devices in the 7.5 to 10 MHz frequency range and developing endoscopic multi-planar 3-dimensional imaging methods should yield major advances in diagnostic and surgical planning for pediatric heart patients.

这些技术和临床研究的目的是进一步 推进对先天性心脏的婴儿的无创评估 通过在7.5处提供专门的高频分阶段设备来提供疾病 MHz和10 MHz以及专门设计的儿科内窥镜设备 术中先天性心脏解剖结构和三 复杂心血管畸形的维度重建。 我们以前在该提案的前两年的工作已导致 第一个功能性7.5 MHz的设计和实施微型化 64个元素小儿探针及其在儿科心脏中的应用， 腹部成像和血管解剖学成像 通过多普勒和颜色流量方法增强。 这些探针作为 推动开发商业7.5 MHz探针的推动力。 电动和其他公司掌握这项技术的尝试。 （二 其他组已经准备了7.5 MHz的探针。 没有一个近场 优化或分辨率与我们的分辨率一样高）。 进一步优化 7.5 MHz探针的设计参数和10 MHz相的开发 阵列探针应进一步推进小儿心血管成像。 此外，内窥镜和食管方法的快速演变 评估患者的心脏病已被证明在 成人心脏病学。 在小儿心脏病学中，由于复杂性 先天性疾病解剖学，对于小型化也有至关重要的需求 用于术中先天性心脏的婴儿使用的设备 疾病修复。 没有高频儿科内窥镜适用于 新生婴儿。 我们建议开发的内窥镜设备和 构建包括7.5 MHz和10 MHz内窥镜探针，分别为6至8 mm2 阵列技巧建立在6毫米儿科食管镜上 多平面成像和心脏的三维重建 结构和流动。 我们在扩展范围和多功能性方面的努力 在7.5至10 MHz频率范围内的分阶段阵列设备和开发 内窥镜多平面3维成像方法应大量产生 小儿心脏患者的诊断和手术计划的进展。