Selective MRI reacquisition to extend the working range of retrospective motion correction

Malte Laustsen; Jakob  Slipsager; Thomas  Gaaß; Andre Van der Kouwe; Melanie Ganz; Lars G.  Hanson

Selective MRI reacquisition to extend the working range of retrospective motion correction

Malte Laustsen, Jakob Slipsager, Thomas Gaaß, Andre Van der Kouwe, Melanie Ganz, Lars G. Hanson

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Abstract

Retrospective motion correction (RMC) can substantially reduce motion artifacts in 3D brain MRI. However, for extensive motion, RMC performance is limited. We evaluate RMC with selective reacquisition (RMC+reacq) to expand the range of correctable motion, while directly comparing to prospective motion correction (PMC) for volumetric brain MRI, using external motion tracking. Both approaches lead to significant image quality improvement and the performance of RMC+reacq and PMC was only found statistically significant in 1 of 9 comparisons. These results suggest that RMC with selective reacquisition can match the performance of PMC for 3D-MPRAGE and 3D-FLAIR sequences.

Original language	English
Publication date	2023
Publication status	Published - 2023
Event	2023 ISMRM & ISMRT Annual Meeting & Exhibition - Metro Toronto Convention Centre (MTCC), Toronto, Canada Duration: 3 Jun 2023 → 8 Jun 2023 Conference number: 32

Conference

Conference	2023 ISMRM & ISMRT Annual Meeting & Exhibition
Number	32
Location	Metro Toronto Convention Centre (MTCC)
Country/Territory	Canada
City	Toronto
Period	03/06/2023 → 08/06/2023

Bibliographical note

Abstract no. 1016

Keywords

Motion Correction
Artifacts

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title = "Selective MRI reacquisition to extend the working range of retrospective motion correction",

abstract = "Retrospective motion correction (RMC) can substantially reduce motion artifacts in 3D brain MRI. However, for extensive motion, RMC performance is limited. We evaluate RMC with selective reacquisition (RMC+reacq) to expand the range of correctable motion, while directly comparing to prospective motion correction (PMC) for volumetric brain MRI, using external motion tracking. Both approaches lead to significant image quality improvement and the performance of RMC+reacq and PMC was only found statistically significant in 1 of 9 comparisons. These results suggest that RMC with selective reacquisition can match the performance of PMC for 3D-MPRAGE and 3D-FLAIR sequences. ",

keywords = "Motion Correction, Artifacts",

author = "Malte Laustsen and Jakob Slipsager and Thomas Gaa{\ss} and {Van der Kouwe}, Andre and Melanie Ganz and Hanson, {Lars G.}",

note = "Abstract no. 1016; 2023 ISMRM & ISMRT Annual Meeting & Exhibition ; Conference date: 03-06-2023 Through 08-06-2023",

year = "2023",

language = "English",

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TY - ABST

T1 - Selective MRI reacquisition to extend the working range of retrospective motion correction

AU - Laustsen, Malte

AU - Slipsager, Jakob

AU - Gaaß, Thomas

AU - Van der Kouwe, Andre

AU - Ganz, Melanie

AU - Hanson, Lars G.

N1 - Conference code: 32

PY - 2023

Y1 - 2023

N2 - Retrospective motion correction (RMC) can substantially reduce motion artifacts in 3D brain MRI. However, for extensive motion, RMC performance is limited. We evaluate RMC with selective reacquisition (RMC+reacq) to expand the range of correctable motion, while directly comparing to prospective motion correction (PMC) for volumetric brain MRI, using external motion tracking. Both approaches lead to significant image quality improvement and the performance of RMC+reacq and PMC was only found statistically significant in 1 of 9 comparisons. These results suggest that RMC with selective reacquisition can match the performance of PMC for 3D-MPRAGE and 3D-FLAIR sequences.

AB - Retrospective motion correction (RMC) can substantially reduce motion artifacts in 3D brain MRI. However, for extensive motion, RMC performance is limited. We evaluate RMC with selective reacquisition (RMC+reacq) to expand the range of correctable motion, while directly comparing to prospective motion correction (PMC) for volumetric brain MRI, using external motion tracking. Both approaches lead to significant image quality improvement and the performance of RMC+reacq and PMC was only found statistically significant in 1 of 9 comparisons. These results suggest that RMC with selective reacquisition can match the performance of PMC for 3D-MPRAGE and 3D-FLAIR sequences.

KW - Motion Correction

KW - Artifacts

M3 - Conference abstract for conference

T2 - 2023 ISMRM & ISMRT Annual Meeting & Exhibition

Y2 - 3 June 2023 through 8 June 2023

ER -

Selective MRI reacquisition to extend the working range of retrospective motion correction

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Bibliographical note

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