A Review on Magnetic Induction Spectroscopy Potential for Fetal Acidosis Examination

Abstract

Fetal acidosis is one of the main concerns during labor. Currently, fetal blood sampling (FBS) has become the most accurate measurement of acidosis detection. However, it is invasive and does not provide a real time measurement due to laboratory procedures. Delays in diagnosis of acidosis have caused serious injury to the fetus, especially for the brain and the heart. This paper reviews the new technique in diagnosis of acidosis non-invasively. Magnetic Induction Spectroscopy (MIS) has been proposed to be a new device for acidosis detection in recent years. This paper explains the basic principle of MIS and outlines the design specifications and design considerations for a MIS pH probe. It is expected that readers will gain a basic understanding of the development of a MIS pH probe from this review.

A battery-less implantable glucose sensor based on electrical impedance spectroscopy

“…The release of ions H and NAD , and more specifically the change of their ionic concentrations could affect the electrical conductivity of the tissues in a measurable level. The concept of indirectly measuring electrical conductivity in order to estimate ionic variations due to anaerobic respiration in glycolysis has been for instance proposed in order to estimate fetal hypoxia 36 . Future studies should aim to investigate the specific physiological processes that link changes in tissue properties to blood glucose levels.…”