The fetal magnetocardiogram.

Fetal magnetocardiography measurements with an array of microfabricated optically pumped magnetometers.

Following the rapid progress in the development of optically pumped magnetometer (OPM) technology for the measurement of magnetic fields in the femtotesla range, a successful assembly of individual sensors into an array of nearly identical sensors is within reach. Here, 25 microfabricated OPMs with footprints of 1 cm(3) were assembled into a conformal array. The individual sensors were inserted...

The Reliability of the Fetal Magnetocardiogram

Future topics in fetal magnetocardiography

Since the first fetal magnetocardiogram was demonstrated by Kariniemi in 1974 [1], various groups worldwide have explored potential of investigating fetal cardiac activity using biomagnetic sensing systems and have examined the issues involved (for an overview, see [2]). In the past 25 years, fetal magnetocardiograms (FMCG) have been recorded in healthy fetuses as well as in pregnancies involvi...

Magnetic measurement of S-T and T-Q segment shifts in humans. Part I: Early repolarization and left bundle branch block.

The direct-current magnetocardiogram not only shows the features usually seen on the electrocardiogram, but also shows the T-Q (baseline) shift due to cardiac injury current. The first direct-current magnetocardiogram measurements of the human heart are presented here. The hypothesis tested is that there is no injury current associated with the S-T shift seen in two electrocardiogram abnormalit...

Programming of infant neurodevelopment by maternal obesity: potential role of maternal inflammation and insulin resistance.

BACKGROUND AND OBJECTIVES Recent studies show that maternal obesity is associated with impaired offspring neurodevelopmental outcomes. The mechanism underlying the association is unclear. However, there is evidence to suggest a role for intra-uterine exposure to inflammation and insulin resistance (IR). We aimed to determine if maternal IR and inflammation were associated to fetal neurodevelopm...