Also in the Article

2.4. Standard approach for QRS-Ta estimation

WY William J. Young SD Stefan van Duijvenboden JR Julia Ramírez AJ Aled Jones AT Andrew Tinker PM Patricia B. Munroe PL Pier D. Lambiase MO Michele Orini

本实验方法提取自研究论文：
A Method to Minimise the Impact of ECG Marker Inaccuracies on the Spatial QRS-T angle: Evaluation on 1,512 Manually Annotated ECGs
Biomed Signal Process Control, Feb 1, 2021; DOI: 10.1016/j.bspc.2020.102305

DOI: 10.1016/j.bspc.2020.102305

提问与回复 (0)

复制实验方法链接

查看研究论文

Procedure

The origin of both the QRS and T-wave loops for the identification of the QRS and T-wave vectors is taken at ${\vec{v}}_{0} = \vec{v} (t_{0})$ , where $t_{0} = {Q R S}_{O N}$ . The QRS and T-wave loops are then defined by vectors:

The peak vectors ${\vec{v}}_{Q R S}^{m a x}$ and ${\vec{v}}_{T W}^{m a x}$ are defined as those associated with the largest magnitude, i.e. ${\vec{v}}_{Q R S}^{m a x} = {\vec{v}}_{Q R S} (t_{m})$ , with $t_{m} = a r g (m a x (‖{\vec{v}}_{Q R S} (t)‖))$ , and ${\vec{v}}_{T W}^{m a x} = {\vec{v}}_{T W} (t_{m})$ , with $t_{m} = a r g (m a x (‖{\vec{v}}_{T W} (t)‖))$ . The mean vectors ${\vec{v}}_{Q R S}^{m e a n}$ and ${\vec{v}}_{T W}^{m e a n}$ are measured as the temporal mean of ${\vec{v}}_{Q R S} (t)$ and ${\vec{v}}_{T W} (t)$ . The spatial peak QRS-Ta, ( $α_{P}$ ), is measured as the angle between ${\vec{v}}_{Q R S}^{m a x}$ and ${\vec{v}}_{T W}^{m a x}$ while the spatial mean QRS-Ta, ( $α_{M}$ ), is measured as the angle between ${\vec{v}}_{Q R S}^{m e a n}$ and ${\vec{v}}_{T W}^{m e a n}$ .

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

注意：以上内容是从某篇研究文章中自动提取的，可能无法正确显示。

Also in the Article

Q&A

请登录并在线提交您的问题

您的问题将发布在Bio-101网站上。我们会将您的问题发送给本研究方案的作者和具有相关研究经验的Bio-protocol成员。我们将通过您的Bio-protocol帐户绑定邮箱进行消息通知。

相关资源
www.bio-protocol.org
前沿实验方法
www.bio-thing.com
试剂与设备

lab.bio-thing.cn
实验室管理

广告服务
广告政策
广告诚信委员会
广告条款

作者指南
提交流程
作者指南
提交实验方法

关于
关于我们

扫码关注公众号

实验方法 

Request a Protocol

提交 

关于

Also in the Article

Also in the Article