Nonsurgical Microwave Procedure Uncovers Pregnancy Risks

Sept. 12, 2007
During pregnancy, the physiological changes that occur can result in complications for the mother and—in turn—the fetus. At the Microwave Tomography and Materials Research Laboratory's Department of Electronics at Cochin University of Science and ...

During pregnancy, the physiological changes that occur can result in complications for the mother and—in turn—the fetus. At the Microwave Tomography and Materials Research Laboratory's Department of Electronics at Cochin University of Science and Technology, in-vitro measurements of amniotic fluid were done using a rectangular cavity perturbation technique in the 2-to-3-GHz frequency range. Because this method can rely on a low-volume sample, it is appropriate for limited samples like amniotic fluid. The researchers—Anil Lonappan, Vinu Thomas, G. Bindu, Joe Jacob, C. Rajasekaran, and K.T. Mathew—specifically measured the dielectric parameters of the amniotic fluid. Different samples were taken as a function of gestation weeks. They produced a conductivity change at the end of normal pregnancies and consistent conductivity in complicated ones. That increase in conductivity was due to the presence of higher levels of glucose or protein in the normal amniotic-fluid samples. See "Non Surgical Life Saving Diagnostic Procedure Using Microwaves," Microwave And Optical Technology Letters, Oct. 2007, p. 2364.

About the Author

Nancy Friedrich | Editor-in-Chief

Nancy Friedrich began her career in technical publishing in 1998. After a stint with sister publication Electronic Design as Chief Copy Editor, Nancy worked as Managing Editor of Embedded Systems Development. She then became a Technology Editor at Wireless Systems Design, an offshoot of Microwaves & RF. Nancy has called the microwave space “home” since 2005.

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