ArticleMagnetic resonance in medicine2015
Magnetic resonance imaging of ionic currents in solution: the effect of magnetohydrodynamic flow.
Article in Magnetic resonance in medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed.
- Magnetometry for Agriculture and Animal Systems: From Classical Sensors to Quantum-Enabled Biosensing.Biosensors · 2026Review
- Can MRI Be Used as a Sensor to Record Neural Activity?Sensors (Basel, Switzerland) · 2023Review
- Evaluation of magnetohydrodynamic effects in magnetic resonance electrical impedance tomography at ultra-high magnetic fields.Magnetic resonance in medicine · 2019Article
- Direct neural current imaging in an intact cerebellum with magnetic resonance imaging.NeuroImage · 2016Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
purposeReliably detecting MRI signals in the brain that are more tightly coupled to neural activity than blood-oxygen-level-dependent fMRI signals could not only prove valuable for basic scientific research but could also enhance clinical applications such as epilepsy presurgical mapping. This endeavor will likely benefit from an improved understanding of the behavior of ionic currents, the mediators of neural activity, in the presence of the strong magnetic fields that are typical of modern-day MRI scanners. THEORY: Of the various mechanisms that have been proposed to explain the behavior of ionic volume currents in a magnetic field, only one-magnetohydrodynamic flow-predicts a slow evolution of signals, on the order of a minute for normal saline in a typical MRI scanner.
methodsThis prediction was tested by scanning a volume-current phantom containing normal saline with gradient-echo-planar imaging at 3 T.
resultsGreater signal changes were observed in the phase of the images than in the magnitude, with the changes evolving on the order of a minute.
conclusionThese results provide experimental support for the MHD flow hypothesis. Furthermore, MHD-driven cerebrospinal fluid flow could provide a novel fMRI contrast mechanism.
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