Parallel multi-slice MR imaging with suppression of side band artefacts
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United States of America Patent
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Sep 3, 2019
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Jan 18, 2018
app pub date -
Jan 25, 2016
filing date -
Jan 27, 2015
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Abstract
An object (10) placed in an examination volume of a MR device (1) is subject to an imaging sequence including multi-slice RF pulses for simultaneously exciting two or more spatially separate image slices. MR signals are received in parallel via a set of RF coils (11, 12, 13) having different spatial sensitivity profiles within the examination volume. An MR image is reconstructed for each image slice from the acquired MR signals. MR signal contributions from the different image slices are separated on the basis of the spatial sensitivity profiles of the RF coils (11, 12, 13). Side-band artifacts, namely MR signal contributions from regions excited by one or more side-bands of the multi-slice RF pulses, are suppressed in the reconstructed MR images on the basis of the spatial sensitivity profiles of the RF coils (11, 12, 13).
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