Physical Phantoms for Biomagnetic and Bioelectric Measurements
نویسندگان
چکیده
منابع مشابه
The influence of open loop currents on bioelectric and biomagnetic measurements: a phantom study
Closed loop currents are discussed as possible sources of differential information in the magnetocardiogram and the electrocardiogram. It is, however, unclear if also open loops, such as spiral activation in the heart, can contribute to these differences. We model two types of open loops, based on the heart geometry, with the help of twelve artificial current dipoles in a physical torso phantom...
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Between 60 and 70 million people in the United States are affected by gastrointestinal disorders. Many of these conditions are difficult to assess without surgical intervention and accurate noninvasive techniques to aid in clinical assessment are needed. Through the use of a superconducting quantum interference device (SQUID) gradiometer, the weak magnetic field generated as a result of muscula...
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Multichannel superconducting quantum interference device (SQUID) systems based on double relaxation oscillation SQUIDs (DROS) were developed for measuring magnetocardiography (MCG) and magnetoencephalography (MEG) signals. Since DROS provides large fluxto-voltage transfer coefficients, about 10 times larger than the DC SQUIDs, direct readout of the SQUID output was possible using compact roomte...
متن کاملSome physical aspects of bioelectric phenomena.
3 If the same standard state is assumed for the solution in both phases S would be unity, but it is more convenient to assume different standard states so that as long as the properties of the two phases remain constant S will be constant but as a rule its value will not be unity. 4 The partition coefficient includes only the ions K+ and Cl-. It would not be constant if it included the undissoc...
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ژورنال
عنوان ژورنال: Biomedizinische Technik/Biomedical Engineering
سال: 1999
ISSN: 0013-5585,1862-278X
DOI: 10.1515/bmte.1999.44.s2.184