3D Heart Instructional Program for Conduction Defects

针对传导缺陷的 3D 心脏教学计划

• 批准号: 6994521
• 负责人: CHARLES W OLSON
• 金额: $ 9.85万
• 依托单位: ECG-TECH CORP
• 依托单位国家: 美国
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-19 至 2007-06-18
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6994521
• 关键词: bioimaging /biomedical imaging; cardiovascular disorder education; clinical research; computer assisted instruction; computer simulation; education evaluation /planning; educational resource design /development; electrocardiography; health care personnel education; heart conduction system; heart disorder; heart electrical activity; heart ventricle; human subject; myocardial infarction; three dimensional imaging /topography; training

DESCRIPTION (provided by applicant): The objective of this program is to provide a superior educational tool for cardiologists and other health care professionals that are involved in the interpretation of the electrocardiogram. The electrocardiogram is frequently the first diagnostic information that is obtained, and the accuracy of this diagnosis can impact the survival rates of patients. An existing program provides the training for the recognition of the major types of myocardial infarction: Anterior, Inferior, and Posterior. The new program will add the ability to recognize the various types of conduction defects and how they appear on the normal 12-lead electrocardiograph. The uniqueness of this method is that it shows a movie in 3 dimensions of the electrical activation of the heart, along with the electrical vectors that are developed in the heart segments. A second movie shows how these vectors are related to the vector signals in the three planes - frontal, horizontal, and sagittal - and from there to the 12 leads of the normal electrocardiograph. This visual experience provides a direct relationship between the physical properties of the heart and the EGG. In the case of Ml the loss of myocardial activity has a direct relation to the loss of vectors in this direction and thus a visually related change in the 12 lead signals. In the case of conduction defects the projection of the activation wave front is changed so that the vectors are altered from the normal direction. This provides the cardiologist with a more accurate method of evaluation of the EGG and a better understanding of the relation to the heart. The method of simulation provides the accurate rendition of heart activation surfaces and the generation of vectors for each segment of the heart. It also allows the 3D generation of the movies showing the hearts activity. In the case of LBBB, the 3D picture will show that the activation wave front moves from the right ventricular septal surface to the left ventricle endocardial septal surface. This posterior direction continues as the activation surface moves around the left ventricle from the anterior to the posterior quadrants. All of these training programs will be tested with students to determine the benefit of their employment.

描述（由申请人提供）： 该计划的目的是为心脏病专家和其他参与心电图解释的医疗保健专业人员提供一个上级教育工具。心电图通常是获得的第一个诊断信息，并且该诊断的准确性可以影响患者的存活率。现有的程序提供了识别心肌梗死主要类型的培训：前壁、下壁和后壁。新程序将增加识别各种类型的传导缺陷以及它们如何出现在正常12导联心电图仪上的能力。这种方法的独特之处在于，它显示了心脏电激活的三维电影，沿着在心脏段中产生的电矢量。第二个视频展示了这些向量如何与三个平面（额面、水平面和矢状面）中的向量信号相关，以及如何从三个平面与正常心电图仪的12个导联相关。这种视觉体验提供了心脏的物理特性和EGG之间的直接关系。在MI的情况下，心肌活动的损失与该方向上的矢量损失直接相关，因此与12个导联信号中的视觉相关变化直接相关。在传导缺陷的情况下，激活波前的投影改变，使得矢量从法线方向改变。这为心脏病专家提供了更准确的EGG评估方法，并更好地了解与心脏的关系。模拟的方法提供了心脏激活表面的准确再现和心脏的每个部分的矢量的生成。它还允许3D生成显示心脏活动的电影。在LBBB的情况下，3D图像将显示激动波前从右心室间隔表面移动到左心室内膜间隔表面。当激活表面围绕左心室从前象限移动到后象限时，该向后方向继续。所有这些培训计划将与学生进行测试，以确定他们的就业利益。

项目成果

3D Heart: a new visual training method for electrocardiographic analysis.

• DOI: 10.1016/j.jelectrocard.2007.04.001
• 发表时间: 2007-09-01
• 期刊: Journal of electrocardiology
• 影响因子: 1.3
• 作者: Olson, Charles W;Lange, David;Selvester, Ronald H S
• 通讯作者: Selvester, Ronald H S