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European Radiology

Erschienen in:

15.02.2018 | Magnetic Resonance

Artifacts during the arterial phase of gadoxetate disodium-enhanced MRI: Multiple arterial phases using view-sharing from two different vendors versus single arterial phase imaging

verfasst von: Ji Hye Min, Young Kon Kim, Tae Wook Kang, Woo Kyoung Jeong, Won Jae Lee, Soohyun Ahn, Na Young Hwang

Erschienen in: European Radiology | Ausgabe 8/2018

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Abstract

Objectives

To assess the usefulness of multiple arterial phase (AP) of gadoxetic acid-enhanced MRI using view-sharing of two different vendors to reduce transient severe motion (TSM) artifact in the AP.

Methods

This retrospective study included 298 patients (mean age 63 years) who underwent gadoxetic acid MRI with multiple AP from two different vendors; either triple (subcohort A, n=174) or quadruple (subcohort B, n=124) AP. 202 patients (143 vs. 59) underwent follow-up MRI with single AP. To compare multiple AP with single AP and between subcohorts, mean artifact score rated by two observers and frequency of significant artifacts were evaluated. Frequency of acquisition of late AP was also assessed.

Results

There was no difference in mean artifact score (p=0.086) or frequency of significant artifacts (p=0.219) between multiple AP and single AP. For the mean best score with multiple AP, subcohort B was better than subcohort A (p<0.001). Late AP was achieved more often with multiple AP (74.8 %, 98.3 %) than with single AP (64.3 %, 64.4 %).

Conclusion

Multiple AP using different view-sharing failed to show differences in TSM artifacts in AP compared to single AP. Frequency of acquisition of late AP was higher with multiple AP. Mean best artifact score of multiple AP is different depending on view-sharing technique.

Key Points

• TSM artifacts were not significantly different between multiple AP and single AP.

• The frequency of acquiring late AP was higher with multiple AP.

• For multiple APs, TSM artifacts are different according to view-sharing technique.

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Titel: Artifacts during the arterial phase of gadoxetate disodium-enhanced MRI: Multiple arterial phases using view-sharing from two different vendors versus single arterial phase imaging
verfasst von: Ji Hye Min
Young Kon Kim
Tae Wook Kang
Woo Kyoung Jeong
Won Jae Lee
Soohyun Ahn
Na Young Hwang
Publikationsdatum: 15.02.2018
Verlag: Springer Berlin Heidelberg
Erschienen in: European Radiology / Ausgabe 8/2018
Print ISSN: 0938-7994
Elektronische ISSN: 1432-1084
DOI: https://doi.org/10.1007/s00330-018-5307-4

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Artifacts during the arterial phase of gadoxetate disodium-enhanced MRI: Multiple arterial phases using view-sharing from two different vendors versus single arterial phase imaging