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   Articles with "gradient coil" as a keyword



A novel method for highly linear gradient coil design based on stream function

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recommendations! Published in 2024 at "Medical Physics"

DOI: 10.1002/mp.17301

Abstract: Magnetoencephalography (MEG) and magnetic resonance imaging (MRI) are non‐invasive imaging techniques that offer effective means for disease diagnosis. A more straightforward and optimized method is presented for designing gradient coils which are pivotal parts of… read more here.

Keywords: linear gradient; method highly; novel method; highly linear ... See more keywords

Angle reduction for fast scans in gradient‐coil‐free portable MRI using rotational spatial encoding magnetic fields via an efficient encoding capability evaluation

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recommendations! Published in 2025 at "Magnetic Resonance in Medicine"

DOI: 10.1002/mrm.70043

Abstract: The goal of this study is to reduce rotation angles for faster scans in a gradient‐coil‐free portable MRI system, employing rotational spatial encoding magnetic fields (rSEM) with nonlinear gradients. This is achieved by utilizing a… read more here.

Keywords: rotational spatial; portable mri; free portable; coil free ... See more keywords
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Parametric modeling of steady-state gradient coil vibration: Resonance dynamics under variations in cylinder geometry.

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recommendations! Published in 2021 at "Magnetic resonance imaging"

DOI: 10.1016/j.mri.2021.06.007

Abstract: Gradient coil (GC) vibration is the root cause of many problems in MRI adversely affecting scanner performance, image quality, and acoustic noise levels. A critical issue is that GC vibration will be significantly increased close… read more here.

Keywords: vibration; geometry; gradient coil; coil vibration ... See more keywords

Electric Field Probe Used for Gradient Coil-Induced Field Measurements During Medical Device Testing: Design, Calibration, and Validation

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recommendations! Published in 2020 at "IEEE Transactions on Antennas and Propagation"

DOI: 10.1109/tap.2020.2963940

Abstract: In this article, an ultralow-frequency electric field probe capable of measuring time-varying gradient coil induced electric fields in a tissue-mimicking material was constructed, calibrated, and validated. This probe consisted of a 2 cm short dipole… read more here.

Keywords: gradient coil; field; electric field; probe ... See more keywords

Spiral Gradient Coil Design for Use in Cylindrical MRI Systems

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recommendations! Published in 2018 at "IEEE Transactions on Biomedical Engineering"

DOI: 10.1109/tbme.2017.2725962

Abstract: In magnetic resonance imaging, the stream function based method is commonly used in the design of gradient coils. However, this method can be prone to errors associated with the discretization of continuous current density and… read more here.

Keywords: coil design; spiral gradient; coil; gradient coil ... See more keywords

Gradient Coil Design Method Specifically for Permanent-Magnet-Type Low Field Portable MRI Brain Scanner

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recommendations! Published in 2023 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2022.3225042

Abstract: Ferromagnetic structures, particularly the anti-eddy plate, in a bi-planar permanent-magnet-type low-field (0.05 T) magnetic resonance imaging (MRI) brain scanner can distort the gradient field in the target region. This study aims to provide a new… read more here.

Keywords: magnet type; gradient coil; method; permanent magnet ... See more keywords

Early FID Signal Detection Technique With a Gradient Coil for Magnetic Resonance Sounding

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recommendations! Published in 2024 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2024.3406827

Abstract: Magnetic resonance sounding (MRS) is a noninvasive geophysical method that allows direct qualitative and quantitative detection of groundwater and it has been used widely to detect shallow groundwater. However, current MRS device structures suffer from… read more here.

Keywords: coil; detection; fid signal; magnetic resonance ... See more keywords