OBJECTIVE Electroneurography has been an essential method for assessing peripheral nerve disorders for decades. During this procedure, a nerve is briefly electrically excited, and nerve conduction properties are identified by indirect means from the behavior of the innervated muscle. The magnetic field of the resulting muscle response can also be recorded by novel, uncooled magnetometers, which have become very attractive for different medical applications over recent years. These highly sensitive magnetometers are called optically pumped magnetometers. METHODS We performed unaveraged and averaged magnetic signal detection of electrically evoked muscle responses using optically pumped magnetometers. We then discussed the suitability of this procedure for clinical applications in the context of diagnostic value and in direct comparison with the current electrical gold standard. RESULTS The magnetic detection of muscle responses is possible using optically pumped magnetometers. Our magnetic results (averaged and unaveraged) closely match those from electrical measurements. CONCLUSION Optically pumped magnetometers provide an alternative, contactless technology for electrode-based motor studies, but they are currently not ready for routine clinical use. This costly technology requires additional earth magnetic shielding because this is a prerequisite for proper operation. Currently, there are no diagnostic advantages over electrical measurements. Additionally, the required measurement setup and procedure are much more complicated. SIGNIFICANCE In contrast to already published proof-of-principle studies for magnetomyography, we report in detail the results of the magnetic measurements of electrically evoked muscle responses in a shielded environment by applying supramaximal stimulation and finally validate our findings with electroneurography data as a reference.

中文翻译：

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用光泵磁强计对电诱发的肌肉反应进行磁测量。

数十年来，目标神经电图术一直是评估周围神经疾病的重要方法。在此过程中，短暂地刺激了神经，并通过神经支配的肌肉的行为通过间接手段识别了神经的传导特性。产生的肌肉反应所产生的磁场也可以通过新型的，未冷却的磁力计来记录，近年来，这种磁力计对于不同的医疗应用变得非常有吸引力。这些高度灵敏的磁力计被称为光泵磁力计。方法我们使用光泵磁力计对电诱发的肌肉反应进行了非平均和平均磁信号检测。然后，我们在诊断价值的背景下并与当前的电气黄金标准进行了直接比较，讨论了该程序对临床应用的适用性。结果可以使用光泵磁力计对肌肉反应进行磁检测。我们的磁结果（平均和非平均）与电气测量的结果非常匹配。结论光泵磁力计为基于电极的电机研究提供了另一种非接触式技术，但目前尚不能用于常规临床应用。这种昂贵的技术需要附加的地磁屏蔽，因为这是正确操作的先决条件。目前，没有比电气测量更具诊断优势。此外，所需的测量设置和过程要复杂得多。