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Baseline correction does not improve flow quantification in phase-contrast velocity measurement for routine clinical practice

  • Christian Meierhofer
    Correspondence
    Corresponding author. Deutsches Herzzentrum München, Technische Universität München, Munich Lazarettstrasse 36, D-80636 Munich, Germany. Tel.: +49 89 1218 0; fax: +49 89 1218 3013.
    Affiliations
    Department of Pediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München, Technische Universität München (TUM), Munich, Germany
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  • Christine Lyko
    Affiliations
    Department of Pediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München, Technische Universität München (TUM), Munich, Germany
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  • Eike Philipp Schneider
    Affiliations
    Department of Pediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München, Technische Universität München (TUM), Munich, Germany
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  • Heiko Stern
    Affiliations
    Department of Pediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München, Technische Universität München (TUM), Munich, Germany
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  • Stefan Martinoff
    Affiliations
    Division of Radiology, Deutsches Herzzentrum München, Technische Universität München (TUM), Munich, Germany
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  • John Hess
    Affiliations
    Department of Pediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München, Technische Universität München (TUM), Munich, Germany
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  • Sohrab Fratz
    Affiliations
    Department of Pediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München, Technische Universität München (TUM), Munich, Germany
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Published:December 20, 2014DOI:https://doi.org/10.1016/j.clinimag.2014.12.010

      Abstract

      Introduction

      Velocity offset errors may influence flow measurement in phase-contrast cardiovascular magnetic resonance (CMR). By using a stationary gel phantom, offset errors probably may be corrected. We tested its impact on flow measurement and, in particular, on shunt calculation in patients proven not to have any shunt.

      Methods

      Flow measurements were carried out in 24 patients with congenital heart disease. Baseline correction was performed by using a stationary gel phantom.

      Results

      Significantly more patients without shunts incorrectly showed a calculated shunt after baseline correction.

      Conclusions

      Baseline correction did not improve flow measurement and was clinically not relevant for routine CMR.

      Keywords

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