Vector magnetocardiography measurement with a compact elliptically polarized laser-pumped magnetometer

作者：Wenqiang Zheng, Shengran Su, Guoyi Zhang, Xin Bi, Qiang Lin · 发表于：Biomedical Optics Express · 年份：2019 · DOI：10.1364/boe.380314 · 被引用次数：47 · 研究领域：Atomic and Subatomic Physics Research、Advanced MRI Techniques and Applications、Non-Invasive Vital Sign Monitoring

We report on a practical approach to vector biomagnetism measurement with an optically pumped magnetometer for measuring total magnetic field intensity. Its application to vector magnetocardiography is experimentally demonstrated with a compact elliptically polarized laser-pumped M x atomic magnetometer (EPMx OPM). The approach is proved to be effective and able to provide more complete cardiac magnetic information. The cardiac magnetic vectors are displayed in three-dimensional space in the form of magnetic vector loops. The sensor configuration and the image processing method here are expected to form further values, especially for multi-channel vector biomagnetism measurement, clinical diagnosis, and field source reconstruction.