Flip Angle Errors in Actual Flip Angle Imaging Using Polyvinylpyrrolidone/Water‐Based Phantoms
Under certain conditions, AFI of PVP/water mixtures suffers from errors originating from interferences of the water and PVP signal components. This can severely reduce the accuracy of the AFI and must be considered for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:semantics> <mml:mrow><mml:msubsup><mml:mi>B</mml:mi> <mml:mn>1</mml:mn> <mml:mo>+</mml:mo></mml:msubsup> </mml:mrow> <mml:annotation>$$ {B}_1^{+} $$</mml:annotation></mml:semantics> </mml:math> mapping with AFI. The impact of this effect can be reduced by increased TE as well as high PVP ratios.
Authors
- Sebastian Schmitter (ORCID: https://orcid.org/0000-0003-4410-6790)
- Max Lutz (ORCID: https://orcid.org/0009-0001-1956-3757)
- Lorenz Mitschang (ORCID: https://orcid.org/0000-0002-9349-6409)
- Niklas Himburg
- Jan Gregor Frintz
Institutions
- Physikalisch-Technische Bundesanstalt (DE)
- University of Minnesota (US)
- German Cancer Research Center (DE)
- Heidelberg University (DE)
- Resonance Research (United States) (US)
- Technische Universität Berlin (DE)
Publication Details
- Journal
- Magnetic Resonance in Medicine
- Published
- 2025-10-18
- DOI
- https://doi.org/10.1002/mrm.70136
- Primary Topic
- Advanced MRI Techniques and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- University of Minnesota
- Deutsche Forschungsgemeinschaft