- Poster presentation
- Open Access
Artifact suppression of SSFP cine sequences at 3T using a novel automatic 3D shimming algorithm
© Rothstein et al; licensee BioMed Central Ltd. 2013
- Published: 30 January 2013
- Ventricular Volume
- Normal Sinus Rhythm
- Segmental Wall
- Frequency Offset
- Scout Image
Imaging the heart at 3T has some advantages, but magnetic susceptibility increases at higher field strengths, generating deleterious banding artifacts, especially when using SSFP-based sequence. We aimed to evaluate whether a recently developed advanced shimming algorithm reduces banding artifacts on SSFP cine images at 3T.
Images were blindly evaluated for segmental function (normal vs. abnormal), and the presence of artifacts within the heart (none, minor or important - the latter meaning that at least one myocardial segment could not be assessed). Ventricular volumes were also blindly measured according to guidelines. Categorical differences were assessed with chi-square, kappa was calculated for agreement and continuous variables were assessed using Student's T test.
Mean LV and RV volumes and ejection fraction.
Cine SSFP at 3T with a new shimming algorithm targeted to the heart is similar to the standard practice of selecting the best frequency offset. This new shimming might simplify cardiac acquisitions at 3T.
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.