
196 Practical Biomedical Signal Analysis Using MATLAB
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It was reported that MCG gives unique information on cardiac ischemia, arrhyth-
mias, and fetal diagnosis [Yamada and Yamaguchi, 2005]. MCG was successfully
applied in diagnosis of several pathological heart conditions. For example inspecting
ST shifts in MCG during an exercise test [Cohen et al., 1983] demonstrated that in-
jury currents resulting from ischemia, practically impossible to measure with ECG,
may be detected by MCG. Usefulness of magnetic field maps to detect angina pec-
toris and myocardial infarction in cases when no ST complex elevation is present
was reported in [Lim et al.,