Fetal magnetocardiography is useful for identifying long QT syndrome in fetuses, which can lead to earlier treatment for both the fetus and the mother, according to a report in Circulation. In some of the 30 cases evaluated, fMCG identified abnormalities not present on the fetal echocardiogram. "The ability to recognize long QT syndrome in the fetus and to effectively treat Torsade de Pointes in utero can be lifesaving," wrote the researchers.

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