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Non-Contact Measurement of Cardiac Electromagnetic Field in Mice Using a Microfabricated Atomic Magnetometer



B Lindseth, P Schwindt, John E. Kitching, D Fischer, V Shusterman


The development of clinical applications of magnetocardiography has been impeded by the large size of the magnetic-field measurement systems. Here we present the first measurements of the cardiac electromagnetic field with an ultra-small (2mm), atomic magnetometer constructed with microfabrication techniques. Measurements were performed in two mice. The magnetometer was placed close to the sternum region, approximately 2 mm away from the surface of the skin. QRS complexes were identifiable in the magnetocardiographic signals in all recordings except for those performed when the animal was moved far away from the sensor (>10 cm). Non-contact recording of cardiac electromagnetic fields with a microfabricated magnetometer is feasible in a shielded environment.
Proceedings Title
Proc., Computers in Cardiology
Conference Dates
September 30-October 3, 2007
Conference Location
Durham, NC
Conference Title
Computers in Cardiology


chip-scale magnetometer, CSAM, magnetocardiography, magnetometer, MCG, sensor


Lindseth, B. , Schwindt, P. , Kitching, J. , Fischer, D. and Shusterman, V. (2007), Non-Contact Measurement of Cardiac Electromagnetic Field in Mice Using a Microfabricated Atomic Magnetometer, Proc., Computers in Cardiology, Durham, NC, [online], (Accessed July 21, 2024)


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Created September 30, 2007, Updated February 17, 2017