Table 3.

Concordance of stress testing and interpretable MCG.

Concordance table: stress test and MCG N = 70	MCG + n = 41	MCG − n = 29
Stress Test + n = 10	10 4 ischemic: • 6 Nuclear ST (3 ischemic) • 4 Stress Echo (1 ischemic)	0 0 ischemic
Stress Test − n = 60	31 2 ischemic: • 16 Nuclear ST (2 ischemic) • 11 Stress Echo (0 ischemic) • 4 Exercise ST (0 ischemic)	29 0 ischemic: • 11 Nuclear ST • 13 Stress Echo • 5 Exercise ST

There were 70 cases where SOC (nuclear stress, stress echo, or exercise stress test) was performed and an interpretable MCG was available. There was agreement between stress testing and MCG in 39 cases and disagreement in 31 cases. There were six subjects (6/70) that had ischemia. MCG correctly identified all six of these individuals as having ischemia. There were 2 false negative stress tests (33 %, 2/6). These were both nuclear stress tests. In the two patients with false negative nuclear stress tests, subsequent invasive coronary angiography revealed 100 % stenosis in one patient who underwent PCI, and the other patient had multivessel obstructive disease with 100 % stenosis in one vessel and >70 % stenosis in multiple other vessels and required CABG.