L
Leonard A. Bradshaw
Researcher at Vanderbilt University
Publications - 71
Citations - 843
Leonard A. Bradshaw is an academic researcher from Vanderbilt University. The author has contributed to research in topics: Magnetic field & Medicine. The author has an hindex of 16, co-authored 63 publications receiving 753 citations. Previous affiliations of Leonard A. Bradshaw include Vanderbilt University Medical Center & Lipscomb University.
Papers
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Journal ArticleDOI
Volume conductor effects on the spatial resolution of magnetic fields and electric potentials from gastrointestinal electrical activity.
Leonard A. Bradshaw,Leonard A. Bradshaw,Leonard A. Bradshaw,William O. Richards,William O. Richards,John P. Wikswo +5 more
TL;DR: Sources are more accurately localized and imaged using magnetic measurements than using measurements of electric potential, and the spatialresolution of the magnetic fields from intestinal electrical activity is higher than the spatial resolution of the external potentials.
Journal ArticleDOI
Correlation and comparison of magnetic and electric detection of small intestinal electrical activity
TL;DR: It is concluded that SQUID magnetometers could noninvasively record small intestinal BER that was highly correlated with the activity recorded by invasive serosal electrodes.
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Magnetoenterography (MENG): noninvasive measurement of bioelectric activity in human small intestine.
William O. Richards,Leonard A. Bradshaw,Daniel J. Staton,C L Garrard,Liu F,Buchanan S,John P. Wikswo +6 more
TL;DR: The aim of this study was to measure noninvasively the biomagnetic fields of human stomach and small intestine using a 37-channel SQUID gradiometer positioned over the epigastrium and umbilicus.
Journal ArticleDOI
The human vector magnetogastrogram and magnetoenterogram
TL;DR: The observed difference in direction of gastric and intestinal magnetic field vectors indicates that vector recordings dramatically increase the ability to separate physiological signal components from nonphysiological components and to distinguish between different physiological components.
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Biomagnetic characterization of spatiotemporal parameters of the gastric slow wave.
Leonard A. Bradshaw,Leonard A. Bradshaw,Andrei Irimia,J. A. Sims,Michael R. Gallucci,R. L. Palmer,William O. Richards +6 more
TL;DR: The MGG not only records frequency dynamics of the gastric slow wave, but also characterizes gastric propagation, which primarily reflects the underlying gastric electrical activity, but not its mechanical activity.