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首页> 外文期刊>Journal of Electrocardiology: An International Publication for the Study of the Electrical Activities of the Heart >The relationship between programmed pacemaker pulse amplitude and the surface electrocardiogram recorded amplitude: application of a new high-bandwidth electrocardiogram system.
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The relationship between programmed pacemaker pulse amplitude and the surface electrocardiogram recorded amplitude: application of a new high-bandwidth electrocardiogram system.

机译：编程的起搏器脉冲幅度与表面心电图记录的幅度之间的关系：一种新的高带宽心电图系统的应用。

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BACKGROUND: Recording and displaying outputs from electronic pacemakers with electrocardiogram (ECG) recorders typically used in clinical practice have presented a number of technical limitations. We have recently reported on a new high-bandwidth ECG system and have shown that it is capable of reproducing accurate pulse amplitudes and durations from the body surface. In the present work, we have used our data to calculate a transform function between the programmed pacemaker output voltage and the amplitude on the body surface. METHODS: We recorded 3 high-bandwidth (75,000 samples per second) ECGs from each of 100 pacemaker patients at 3 different programmed outputs. Each pacemaker pulse was isolated using the criterion standard annotations, and the pulses were transformed from the 8 independent leads to an XYZ vector using the Dower transform. The magnitude of the vector was calculated. Linear regression techniques were used to learn a transfer function over the records of the first 50 patients. Theseresults were tested against the second 50 patients. RESULTS: The measured pacemaker pulse vector magnitude has a linear relationship to the programmed pacemaker amplitude on a per-patient basis for most of the patients in the training database. The linear transform models were tested against the testing set with an R(2) metric of 0.38 for the atrial pulses and 0.54 for the right ventricular pulses. CONCLUSION: Understanding the relationship between the generated pacemaker pulses and the measurements at the body surface will help drive specifications for pacemaker pulse detection among the various device manufactures.
机译：背景：通常在临床实践中使用带有心电图（ECG）记录器的电子起搏器记录和显示输出，已经出现了许多技术限制。我们最近报道了一种新的高带宽ECG系统，并表明它能够从体表再现准确的脉冲幅度和持续时间。在当前的工作中，我们已经使用我们的数据来计算编程的起搏器输出电压和身体表面振幅之间的转换函数。方法：我们记录了来自100名起搏器患者的3个高带宽（每秒75,000个样本）心电图，它们以3种不同的程序输出。使用标准标准注释隔离每个起搏器脉冲，并使用Dower变换将脉冲从8个独立导联转换为XYZ向量。计算载体的大小。使用线性回归技术来了解前50名患者记录的传递函数。针对第二50名患者测试了这些结果。结果：对于训练数据库中的大多数患者，在每个患者的基础上，所测量的起搏器脉冲矢量幅度与编程的起搏器幅度呈线性关系。针对测试集对线性变换模型进行了测试，对于心房脉冲，R（2）度量为0.38，对于右心室脉冲，R（2）度量为0.54。结论：了解所产生的起搏器脉冲与人体表面测量值之间的关系将有助于制定各种设备制造商的起搏器脉冲检测规范。

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