相关实验视频
Updated: May 29, 2025
09:14
Cardiac Magnetic Resonance Imaging at 7 Tesla
Published on: January 6, 2019
11.3K
在HCM患者中ECG和MCE发现之间的相关性以及临床影响
Baihetiya Tayier1, Chao Yuan1, Liyun Liu1
1Department of Echocardiography, Xinjiang Medical University Affiliated First Hospital, Urumqi, China; Xinjiang Key Laboratory of Ultrasound Medicine, Urumqi, China.
Journal of electrocardiology
|February 6, 2025
概括
在心电图 (ECG) 上的ST段抑郁 (STD) 超过0.2mV在高性心肌病 (HCM) 患者中,表明心肌 perfusion 问题. 这一发现有助于对HCM患者进行分层,并识别那些风险较高的患者.
科学领域:
- 心脏病学 心脏病学
- 诊断成像 诊断成像 诊断成像
- 生物医学工程 生物医学工程
背景情况:
- 电心电图 (ECG) ST段抑郁 (STD) 是心肌缺血的一个常见指标.
- 心肌对照回声学 (MCE) 是评估心肌 perfusion 的可靠方法.
- 电脑心电图,MCE和高缩性心肌病 (HCM) 的临床影响之间的关系需要进一步阐明.
研究的目的:
- 研究HCM患者的ECG和MCE发现之间的相关性.
- 阐明这些相关性的临床含义.
- 评估STD在HCM中识别输液异常的有用性.
主要方法:
- 32名HCM患者和28名健康对照人被纳入.
- 记录了ST段抑郁 (STD) 幅度和MCE参数 (峰值强度,曲线下的面积,上升斜率,到峰值的时间).
- 根据STD严重程度 (ST1,ST2,ST3) 分组HCM患者进行比较分析.
主要成果:
- 所有HCM患者都表现出性传播疾病 (P < 0.001).
- 与对照组相比,HCM患者的MCE参数 (PI,RS,AUC) 显著降低 (P < 0.001).
- 在STD严重程度组之间观察到峰值强度 (PI) 的显著差异 (ST1与ST3,P=0.01;ST2与ST3,P=0.023).
结论:
- 超过0.2mV的ST段抑郁 (STD) 是心肌输液损伤的强有力的指标.
- 这种心电图发现可以可靠地分层HCM患者.
- 性病作为一种有价值的指标,用于识别高风险的HCM患者.
关键词:
过度缩性心肌病变性是一种心肌疾病.肌动脉对比回声心电图 (Myocardial contrast echocardiography) 是一种心肌肌动脉对比回声心电图.心肌输液是心肌输液.在ST段的低压中,ST段的低压.更多相关视频
相关概念视频
01:29Electrocardiogram
2.1K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
2.1K
01:28Electrocardiogram Fundamentals
482
Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
482
01:25Correlation between ECG and Cardiac Cycle
3.3K
The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
3.3K
01:24ECG Interpretation of Rhythms
424
An electrocardiogram (ECG)graphically represents the heart's electrical activity on ECG paper or a monitor.
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
424