Real-time motion and retrospective receiver sensitivity correction for gluCEST using volumetric navigators (vNavs) at 7T

Esaú Poblador Rodríguez

Real-time motion and retrospective receiver sensitivity correction for gluCEST using volumetric navigators (vNavs) at 7T

Esaú Poblador Rodríguez

Medical University of Vienna

Research output: Contribution to conference › Poster › peer-review

Abstract

CEST is susceptible to subject motion not only due to misregistration of MR images acquired over time and subsequent alterations of B0 field, but also due to the related receiver sensitivity (B1-) inhomogeneities. We propose to correct for ∆B1- from the images generated by an interleaved EPI navigator used for prospective motion correction. We show the benefit of the proposed method, in combination with B1+ and dynamic B0 corrections, to restore a glutamate weighted CEST map in an active healthy volunteer.

Original language	English
Pages	#4527
Publication status	Published - 2020
Externally published	Yes
Event	ISMRM Virtual Conference and Exhibition ISMRM - Duration: 8 Aug 2020 → 14 Aug 2020 https://www.ismrm.org/20m/

Conference

Conference	ISMRM Virtual Conference and Exhibition ISMRM
Period	8/08/20 → 14/08/20
Internet address	https://www.ismrm.org/20m/

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https://cds.ismrm.org/protected/20MProceedings/PDFfiles/3089.htmlLicence: Unspecified

Cite this

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title = "Real-time motion and retrospective receiver sensitivity correction for gluCEST using volumetric navigators (vNavs) at 7T",

abstract = "CEST is susceptible to subject motion not only due to misregistration of MR images acquired over time and subsequent alterations of B0 field, but also due to the related receiver sensitivity (B1-) inhomogeneities. We propose to correct for ∆B1- from the images generated by an interleaved EPI navigator used for prospective motion correction. We show the benefit of the proposed method, in combination with B1+ and dynamic B0 corrections, to restore a glutamate weighted CEST map in an active healthy volunteer.",

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AU - Poblador Rodríguez, Esaú

PY - 2020

Y1 - 2020

N2 - CEST is susceptible to subject motion not only due to misregistration of MR images acquired over time and subsequent alterations of B0 field, but also due to the related receiver sensitivity (B1-) inhomogeneities. We propose to correct for ∆B1- from the images generated by an interleaved EPI navigator used for prospective motion correction. We show the benefit of the proposed method, in combination with B1+ and dynamic B0 corrections, to restore a glutamate weighted CEST map in an active healthy volunteer.

AB - CEST is susceptible to subject motion not only due to misregistration of MR images acquired over time and subsequent alterations of B0 field, but also due to the related receiver sensitivity (B1-) inhomogeneities. We propose to correct for ∆B1- from the images generated by an interleaved EPI navigator used for prospective motion correction. We show the benefit of the proposed method, in combination with B1+ and dynamic B0 corrections, to restore a glutamate weighted CEST map in an active healthy volunteer.

M3 - Poster

SP - #4527

T2 - ISMRM Virtual Conference and Exhibition ISMRM

Y2 - 8 August 2020 through 14 August 2020

ER -

Real-time motion and retrospective receiver sensitivity correction for gluCEST using volumetric navigators (vNavs) at 7T

Abstract

Conference

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