LEFT VENTRICULAR VOLUME WITH TRANSESOPHAGEAL IMAGING

经食管成像的左心室容积

• 批准号: 3342505
• 负责人: ROY W MARTIN
• 金额: $ 15.09万
• 依托单位: UNIVERSITY OF WASHINGTON
• 依托单位国家: 美国
• 财政年份: 1984
• 资助国家: 美国
• 起止时间: 1984-07-01 至 1987-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3342505
• 关键词: computer assisted diagnosis; diagnosis quality /standard; echocardiography; esophagus; heart surgery; heart ventricle; human subject; image processing; intracardiac volume; myocardium; noninvasive diagnosis; online computer; patient monitoring device

Recent technological developments have made it possible to image the nyocardium via the esophagus using sonographic methods. We plan to investigate the utilization of this method and further develop it for patient monitoring. In particular, modifications will be made in esophageal probes to obtain multi-images at various angles through the heart. Three-dimensional computer reconstructions methods will then be employed for computing left-ventricular volumes at both systole and diastole from this multi-planar information. Therefore, ejection fraction, diastolic volume, and stroke volume will be derived and used to assess myocardial performance. The primary aim is toward application of this technology in the operating room in patient management, but we plan to investigate its use elsewhere as well. In order to determine the accuracy of these measurements they will be compared to other measurement modalities. Further, the clinical utility of the system in patient management will be assessed. Initially, off-line analysis will be performed using semi-manual processing methods. However, computer and other hardware processing methods will be developed as well as special probe configurations to allow measurements to be made rapidly and on-line.

最近的技术发展使人们有可能想象 经食道超声心动图检查。我们计划 调查此方法的使用情况，并进一步开发此方法 病人监护。特别是，将在 食道探头通过食道探头获取多角度图像 心。然后，三维计算机重建方法将被 用于计算收缩和收缩时的左心室容量 从这个多平面的舒张期信息。因此，射血分数， 将得出舒张期容量和每搏量，并用于评估 心肌功能。主要目的是为了应用这一点 技术应用于手术室的病人管理，但我们计划 调查它在其他地方的使用情况。为了确定精确度 在这些测量中，它们将与其他测量进行比较 医疗模式。此外，该系统在患者中的临床应用 管理层将接受评估。最初，离线分析将是 使用半手工加工方法执行。然而，计算机和 将开发其他硬件处理方法以及特殊的 探头配置，允许快速和在线进行测量。