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KMID : 1151820160100070531
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Journal of the Korean Society of Radiology
2016 Volume.10 No. 7 p.531 ~ p.537
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Experimental Study of Chemical Shift Artifacts at 1.5T and 3.0T MRI using Gradient Echo Pulse Sequence
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Kweon Dae-Cheol
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Abstract
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An experimental study was to use the parameter to determine the MRI artifact of chemical shift that occurs in water and fats. Scanning the image according to the encoding parameter and the bandwidth and change in 1.5T and 3.0T MRI to the SNR, we compared the CNR. In the image was confirmed that the occurrence of artefacts in the chemical shift of the water and oil. 3.0T more image artifacts in the 1.5T was confirmed that the relatively reduced. The width of the bandwidth it could be confirmed that according to the honeycombs artifacts decrease. Therefore, in order to reduce the artifacts in the MRI scan of the chemical shift runners weak field strength, is thought to be appropriate to widen the width of the bandwidth.
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KEYWORD
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MRI, Chemical shift, Artifact, GE pulse sequence
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