Abstract
In this paper we present a portable magnetocardiography device. The focus of this development was delivering a rapid assessment of chest pain in an emergency department. The aim was therefore to produce an inexpensive device that could be rapidly deployed in a noisy unshielded ward environment. We found that induction coil magnetometers with a coil design optimised for magnetic field mapping possess sufficient sensitivity ( noise floor at 10 Hz) and response ( at 10 Hz) for cycle averaged magnetocardiography and are able to measure depolarisation signals in an unshielded environment. We were unable to observe repolarisation signals to a reasonable fidelity. We present the design of the induction coil sensor array and signal processing routine along with data demonstrating performance in a hospital environment.
Highlights
Chest pain is responsible for one of the highest rates of emergency hospital visits in industrialised countries [1] and accounts for a large proportion of hospital admissions
We found that induction coil magnetometers with a coil design optimised for magnetic field mapping possess sufficient sensitivity (104 fT Hz-1/2 noise floor at 10 Hz) and response attribution to the author(s) and the title of
Statistics show that around 75% of patients who present at the Emergency Department with chest pain do not have a cardiac related condition [2,3,4,5], yet they still need to go through a full diagnostic pathway which can take more than 10 h [2]
Summary
J W Mooney, S Ghasemi-Roudsari, E Reade Banham, C Symonds, N Pawlowski and B T H Varcoe.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
