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）： 该计划的目标是为心脏病专家和其他参与心电图解读的医疗保健专业人员提供优质的教育工具。心电图通常是获得的第一个诊断信息，诊断的准确性会影响患者的生存率。现有的计划提供了识别主要类型心肌梗塞的培训：前壁心肌梗塞、下壁心肌梗塞和后壁心肌梗塞。新程序将增加识别各种类型的传导缺陷以及它们在普通 12 导联心电图上的显示方式的能力。该方法的独特之处在于，它以 3 维的方式显示心脏电激活的电影，以及心脏节段中产生的电矢量。第二部电影展示了这些矢量如何与三个平面（额状、水平和矢状）中的矢量信号相关，以及从那里到正常心电图机的 12 条导联。这种视觉体验提供了心脏和 EGG 物理特性之间的直接关系。在M1的情况下，心肌活动的损失与该方向上的矢量的损失有直接关系，因此与12个导联信号的视觉相关的变化有直接关系。在传导缺陷的情况下，激活波前的投影发生改变，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。模拟方法提供了心脏激活表面的准确再现以及心脏每个节段的矢量生成。它还允许 3D 生成显示心脏活动的电影。对于 LBBB，3D 图像将显示激活波前从右心室间隔表面移动到左心室心内膜间隔表面。当激活表面围绕左心室从前象限移动到后象限时，该后方向继续。所有这些培训计划都将对学生进行测试，以确定他们的就业效益。

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