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相关概念视频

Pulse rhythm01:30

Pulse rhythm

1.3K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
1.3K
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

1.4K
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...
1.4K
Electrocardiogram01:29

Electrocardiogram

5.3K
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...
5.3K
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

445
Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
445
Dysrhythmias I: Introduction01:15

Dysrhythmias I: Introduction

512
Dysrhythmias refers to abnormalities in the heart's rhythm. They result from disruptions in the heart's electrical conduction system, which includes the sinoatrial(SA)node, atrioventricular(AV) node, the bundle of His, bundle branches, and Purkinje fibers.Definition and PathophysiologyDysrhythmias result from disorders of impulse formation, impulse conduction, or both. The heart contains specialized cells in the sinoatrial node, atrioventricular node, and the bundle of His and Purkinje fibers...
512
Dysrhythmias V: Evaluating Dysrhythmias01:30

Dysrhythmias V: Evaluating Dysrhythmias

315
Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
315

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相关实验视频

Updated: Jan 11, 2026

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation
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A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation

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在嵌入式边缘上检测心房动:在低功率微控制器上进行节能推理.

Yash Akbari1, Ningrong Lei2, Nilesh Patel3

  • 1School of Computing and Information Science, Anglia Ruskin University Cambridge Campus, East Rd., Cambridge CB1 1PT, UK.

Sensors (Basel, Switzerland)
|November 13, 2025
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种人工智能系统,用于微控制器上实时检测心房动 (AF). 嵌入式边缘设备提供准确的低功耗心脏监测,增强隐私和电池寿命,用于远程患者查.

关键词:
心房动是心房动的一种.嵌入式 嵌入式 嵌入式能源消耗 能源消耗是指能源的消耗.实时实时的时间.

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Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function
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相关实验视频

Last Updated: Jan 11, 2026

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科学领域:

  • 生物医学工程 生物医学工程
  • 医疗保健中的人工智能
  • 嵌入式系统 嵌入式系统

背景情况:

  • 心房动 (AF) 是一种普遍的心律失常,往往未被诊断出来,导致严重的健康风险,如中风和心力衰竭.
  • 当前的AF检测方法可能需要复杂的设备或基于云的处理,这对连续的远程监控构成了挑战.
  • 需要高效,低功耗的解决方案,可以直接在边缘设备上实时检测AF.

研究的目的:

  • 开发和评估一种新的嵌入式边缘系统,用于实时检测心房动 (AF).
  • 使用优化的人工智能模型,证明在低功耗微控制器单元 (MCU) 上执行AF分类的可行性.
  • 在传统临床环境之外实现节能,保护隐私和可扩展的心脏监测.

主要方法:

  • 从RR-间隔 (RRI) 数据中提取心率变化 (HRV) 特征.
  • 实现了一个紧的长短期内存 (LSTM) 模型,优化为嵌入式部署在MCU上.
  • 直接在边缘设备上对AF事件进行实时分类,而无需依赖完整的ECG或云分析.

主要成果:

  • 在AF检测方面实现了98.46%的整体分类准确度.
  • 在143 ± 0 ms内完成推断,在目标MCU上每次推断的最低功耗为3532 ± 6 μJ.
  • 证明了局部推断的可行性,使警报能够进行战略无线通信,提高隐私和电池寿命.

结论:

  • 在被限制的边缘设备上可以实现临床上有意义的AF监测.
  • 开发的系统为节能,保护隐私和可扩展的AF选提供了一个实用的解决方案.
  • 这项工作通过实用的AI驱动边缘诊断来推进个性化和分散的心脏护理.