Exercise Testing

Laddu, Abhay Atul; Alderson, Lisa; Chaitman, Bernard R.

doi:10.1007/978-1-4471-2828-1_8

Cited by 1 publication

(1 citation statement)

References 67 publications

(63 reference statements)

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“…However, some heart abnormalities can be seen only during exercise (12), such as the common unexplained chest pain. The exercise ECG (eECG), which records the electrical signal of patients in exercise, is a widely used diagnostic procedure in the evaluation of both normal participants and cardiologic patients with coronary heart disease (13)(14)(15)(16).…”

Section: Introductionmentioning

confidence: 99%

A movable unshielded magnetocardiography system

et al. 2023

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Magnetocardiography (MCG), which uses high-sensitivity magnetometers to record magnetic field signals generated by electrical activity in the heart, is a noninvasive method for evaluating heart diseases such as arrhythmia and ischemia. The MCG measurements usually require the participant keeping still in a magnetically shielded room due to the immovable sensor and noisy external environments. These requirements limit MCG applications, such as exercise MCG tests and long-term MCG observations, which are useful for early detections of heart diseases. Here, we introduce a movable MCG system that can clearly record MCG signals of freely behaving participants in an unshielded environment. On the basis of optically pumped magnetometers with a sensitivity of 140 fT/Hz 1/2 , we successfully demonstrated the resting MCG and the exercise MCG tests. Our method is promising to realize a practical movable multichannel unshielded MCG system that nearly sets no limits to participants and brings another kind of insight into the medical diagnosis of heart disease.

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