71 research outputs found

    Model gradient coil employing active acoustic control for MRI

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    Results are presented for a model three-axis gradient coil incorporating active acoustic control which is applied to the switched read gradient during a single-shot rapid echo-planar imaging (EPI) sequence at a field strength of 3.0 T. The total imaging acquisition time was 10.6 ms. Substantial noise reduction is achieved both within the magnet bore and outside the magnet. Typical internal noise reduction over the specimen area is 40 dBA whereas outside the acoustic chamber the noise level is reduced by 60–77 dBA. However these results are relative to a control winding which is switched in phase, adding 6 dBA in its non-optimized mode, which is included in the quoted figures

    Two-dimensional deghosting for EPI

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    Lowering the B

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    ?Silent? MRI with soft gradient pulses

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    Data and code for Fourier Transform Temporal Diffusion Spectroscopy

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    This data set contains raw data from a Bruker micro-MRI system running ParaVision360.3.3 software (data), the measurement method code for this system (method), and matlab code used to generate plots for the figures 3 and 4 of the paper (matlab). The latter includes the reconstruction of images and calculation of FTDS spectra for selected image regions and for all pixels, respectively.THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV
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