Magnetocardiography Using a Novel Analysis System (Cardioflux)in ED Observation Unit Chest Pain Patients – A Feasibility Study

Abstract

Background: Cardiovascular disease is currently the leading cause of death in the United States and is the second most common chief complaint among Emergency Department (ED) patients. Magnetocardiography (MCG) has emerged as a viable, non-invasive option for the evaluation of coronary artery stenosis. Cardioflux (CF) is a novel MCG imaging and analysis system. This study aims to evaluate the feasibility of using MCG using CF (MCG-CF) in our Emergency Department Observation Unit (EDOU).

Methods: This is a single-center, retrospective, observational study of ED patients placed in the EDOU with symptoms of possible cardiac ischemia from July 1, 2017 to October 31, 2017 with a non-invasive stress test ordered, to evaluate if they would have been eligible for MCG-CF scanning.

Results: Of the 225 patients that met inclusion criteria, 69% were eligible for an MCG-CF scan (n = 156). The average patient was 55 years, 54% were women and 59% were Black. The most common exclusion was having a BMI of greater than or equal to 35kg/m2 making up 86% of exclusions.

Conclusions: This feasibility study demonstrates that most patients in our EDOU are eligible for a MCG-CF scan. Slight revisions to the device would allow more patients with larger BMI to be included.