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LEFT VENTRICULAR VOLUME WITH TRANSESOPHAGEAL IMAGING

经食管成像的左心室容积

基本信息

批准号：
3342506
负责人：
ROY W MARTIN
金额：
$ 14.54万
依托单位：
UNIVERSITY OF WASHINGTON
依托单位国家：
美国
项目类别：
财政年份：
1984
资助国家：
美国
起止时间：
1984-07-01 至 1988-06-30
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/3342506
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

项目摘要

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描绘出使用超声方法通过食管进行食管灌注。我们计划研究这种方法的利用，并进一步发展它，病人监护特别是，将在以下方面进行修改：食管探头，以获得多个图像在不同的角度，通过心三维计算机重建方法将是用于计算收缩期和舒张期的左心室容积，从这个多平面的信息中提取信息。因此，射血分数，将推导出舒张期容积和每搏输出量，并用于评估心肌性能主要目的是为了应用这一点，技术在手术室的病人管理，但我们计划，在其他地方也使用它。为了确定这些测量结果将与其他测量结果进行比较方式。此外，该系统在患者中的临床实用性将对管理进行评估。首先，离线分析将使用半手动处理方法执行。然而，计算机和将开发其他硬件处理方法以及特殊的探针配置，以允许快速和在线进行测量。