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- W2331746246 abstract "Ascertaining the success of metabolic/bariatric surgery procedures and modifying their dynamics today lack noninvasive, accurate, and objective assessment technology. The feasibility of a method for measuring the cross-sectional area of and flow through the upper gastrointestinal system by electromagnetic induction is described. Our method depends on the change in resonance frequency of a series circuit (capacitor, inductor, and resistor) when changing the induction parameters. This is done by placing a coil constructed of multiple loops of wire around a substance of high magnetic permeability. A large coil and a 52-in-circumference simulation, 2-chambered, cylinder and a small coil and a test tube were used for these studies. Five feasibility experiments were performed using a standard protocol. Results demonstrated that using both the large coil and the small coil apparatus, the magnetic permeability compared with air of 3 paramagnetic substances—iron filings, Ferrite 75, and Ferrite 78—were roughly equivalent, although the results showed greater differentiation with the small coil; lactated Ringer solution in the middle chamber of the large coil cylinder showed no change in various resonance frequencies; and sensitivity discrimination using the small coil between a 2-cm and a 1.5-cm tube filled with iron filings demonstrated reasonable sensitivity for the system, with comparable outcomes for the large coil. This feasibility study has been successful and serves as incentive to broaden simulation testing of our concept and device with eventual human application." @default.
- W2331746246 created "2016-06-24" @default.
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- W2331746246 date "2014-10-01" @default.
- W2331746246 modified "2023-09-25" @default.
- W2331746246 title "A Novel Method for Measuring the Cross-sectional Area of and Flow Rate Through the Upper Gastrointestinal System" @default.
- W2331746246 cites W2028591320 @default.
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- W2331746246 doi "https://doi.org/10.1097/jce.0000000000000064" @default.
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